Journal articles: 'Aedes; Culex'

1

Lataha, Lataha, and Nur Inang. "KEMAMPUAN EKSTRAK DAUN PEPAYA (Carica papaya L.) UNTUK MEMATIKAN LARVA NYAMUK Aedes aegypti dan Culex sp." Sulolipu: Media Komunikasi Sivitas Akademika dan Masyarakat 18, no. 2 (October 15, 2019): 189. http://dx.doi.org/10.32382/sulolipu.v18i2.1157.

Full text

Abstract:

Vektor merupakan serangga atau hewan lain yang biasanya membawa agent salah satunya nyamuk Aedes aegypti merupakan nyamuk penyebab penyakit demam berdarah dengue (DBD) serta nyamuk Culex sp dapat menyebabkan penyakit Japanese Entephalitis (radang otak) dan Filiriasis. Tahun 2015 Kabupaten Bone termasuk dalam kategori tertinggi penyakit DBD di Sulawesi Selatan sebanyak 777 kasus. Dan untuk kasus filariasis kategori tertnggi pada kabupaten Pangkep sebanyak 116 kasus.Tujuan penelitian ini adalah untuk mengetahui kemampuan ekstrak daun papaya (Carica papaya L.) untuk mematikan larva Aedes aegypti dan Culex sp. Jenis penelitian yang digunakan adalah bersifat eksperimen, yaitu untuk mengetahui kemampuan ekstrak daun papaya (Carica papaya L) untuk mematikan larva nyamuk Aedes aegypti dan Culex sp dengan jumlah sampel sebanyak 480 ekor.Hasil penelitian ini menunjukkan bahwa larva Aedes aegypti dan Culex sp ekstrak daun papaya untuk mematikan larva Aedes aegypti dengan konsentrasi 10% sebanyak 43,3%, 15% sebanyak 73% dan konsentrasi 20% sebanyak 98,1% dan Culex Sp dengan konsentrasi 10% sebanyak 28,3%, konsentrasi 15% sebanyak 44,9% dan konsentrasi 20% sebanyak 69,8%Kesimpulan dari penelitian ini menunjukkan bahwa Ekstrak Daun Pepaya (Carica papaya L.) mampu mematikan larva instar III nyamuk Aedes aegypti dan Culex sp dengan konsentrasi 15% dan 20% dengan waktu 12 jamKata Kunci : Ekstrak Daun Pepaya, Culex, Aedes Aegypti.

APA, Harvard, Vancouver, ISO, and other styles

2

Qudsi, Hasnawiyah. "PREFERENSI NYAMUK Aedes sp. DAN Culex sp. MENGGUNAKAN MEDIA CAIR LIMBAH RUMAH TANGGA DI BANJARBARU." BIOSCIENTIAE 9, no. 2 (August 1, 2021): 40. http://dx.doi.org/10.20527/b.v9i2.3872.

Full text

Abstract:

The aim of this study is to assess the preferences of Aedes sp and Culex sp onbreeding place using wastewater of rice and liquid soap waste. This study used purposivesampling method, the sample taken from yard of 6 villages in the district of North andsouth Banjarbaru. Sample taking by placing the sample retrieval ovitrap containing wasteliquid soap, sewage wastewater of rice and water wells. The number of larvae obtained inliquid soap waste media for Aedes sp is up to 3140 and Culex sp larvae is up to 67 larvae,while the wastewater of rice for Aedes sp amounted to 1863 larvae and Culex spamounted to 1539 larvae. t test showed that the effect of liquid soap waste andwastewater of rice against Aedes sp and Culex sp larvae are different but not real. Wasteliquid soap and wastewater of rice favored by Aedes sp and Culex sp larvae, so, both thewaste liquid soap and wastewater of rice can be used as breeding media for Aedes sp. andCulex sp.

APA, Harvard, Vancouver, ISO, and other styles

3

Lourenço-de-Oliveira, Ricardo, Rosemarie Heyden, and Teresa Fernandes da Silva. "Alguns aspectos da ecologia dos mosquitos (Diptera, Culicidae) de uma área de planície (granjas Calábria), em Jacarepaguá, Rio de Janeiro: V. Criadouros." Memórias do Instituto Oswaldo Cruz 81, no. 3 (September 1986): 265–71. http://dx.doi.org/10.1590/s0074-02761986000300003.

Full text

Abstract:

Apresentamos os resultados de observações sobre os criadouros dos mosquitos, que realizamos numa fazenda - Granjas Calábria, da Baixada de Jacarepaguá, Rio de Janeiro, no período de agosto de 1981 a julho de 1983. A maioria das espécies locais preferiu coleções líquidas no solo, particularmente as de caráter natural, não deixando, entretanto, de procurar aquelas propiciadas pelas atividades humanas. Os criadouros transitórios foram mais freqüentados por Culex saltanensis e pelas espécies da tribo Aedini, como Aedes scapularis, Aedes taeniorhynchus, Psorophora ciliata e Psorophora confinnis, enquanto os de caráter permanente foram mananciais de formas imaturas de Mansonia titillans, Culex amazonensis, Culex chidesteri, Culex bidens, Culex declarator, Culex nigripalpus e Culex plectoporpe. Algumas espécies foram coletadas em recipientes naturais: Culex ocellatus, os Culex (Microculex), Phoniomyia davisi, Phoniomyia deanei e Wyeomyia forcipenis, em bromélias; Aedes terrens, Culex gairus e Culex imitador, em buraco em árvore; e Wyeomyia leucostigma, em axilas submersas das folhas de taboas (Thypha dominguensis). Culex gairus foi encontrado pela primeira vez criando em recipientes artificiais, locais também preferidos por Culex corniger, Culex quinquefasciatus e Limatus durhami.

APA, Harvard, Vancouver, ISO, and other styles

4

Díaz Nieto, Leonardo Martín, Alberico Fernando Murúa, Florencia Andrea Cano, Magdalena Laurito, Walter Ricardo Almirón, and Liliana Salvá. "New records of Culicidae (Diptera) in agricultural oases of San Juan province, Argentina." Check List 16, no. 4 (August 28, 2020): 1085–93. http://dx.doi.org/10.15560/16.4.1085.

Full text

Abstract:

We report eight new Culicidae records from San Juan province, Argentina: Anopheles argyritarsis Robineau-Desvoidy, 1827; Anopheles neomaculipalpus Curry, 1931; Culex acharistus Root, 1927; Culex apicinus Philippi, 1965; Culex maxi Dyar, 1928; Culex quinquefasciatus Say, 1823; Culex saltanensis Dyar, 1928; and Haemagogus spegazzinii Brethes, 1912. The geographic distribution of Aedes aegypti (Linnaeus, 1762), Aedes albifasciatus (Macquart, 1838), Anopheles pseudopunctipennis Theobald, 1901, Culex pipiens Linneaus, 1758, Culex tramazayguesi Duret, 1954, and Psorophora cyanescens (Coquillet, 1902) is extended. Data on collection localities, types of breeding sites and health importance are also presented.

APA, Harvard, Vancouver, ISO, and other styles

5

Noureldin, Elsiddig, Denise Tan, Ommer Daffalla, Hatim Almutairi, Jaber Ghzwani, Majhalia Torno, Omar Mashi, et al. "DNA Barcoding of Potential Mosquito Disease Vectors (Diptera, Culicidae) in Jazan Region, Saudi Arabia." Pathogens 11, no. 5 (April 19, 2022): 486. http://dx.doi.org/10.3390/pathogens11050486.

Full text

Abstract:

The conventional morphological characterization of mosquito species remains heavily used for species identification in Jazan, Saudi Arabia. It requires substantial expertise and time, as well as having difficulty in confirming identity of morphologically similar species. Therefore, to establish a reliable and accurate identification system that can be applied to understanding spatial distribution of local mosquito species from the Jazan region, DNA barcoding was explored as an integrated tool for mosquito species identification. In this study, 44 adult mosquito specimens were analyzed, which contain 16 species belong to three genera of potential mosquito disease vectors (Aedes, Anopheles, and Culex). The specimens were collected from the Jazan region located in southwest Saudi Arabia. These included old and preserved mosquito voucher specimens. In addition, we assessed the genetic distance based on the generated mitochondrial partial COI DNA barcodes to detect cryptic diversity across these taxa. Nine mosquito species belonging to three genera were successfully barcoded and submitted to GenBank, namely: Aedes aegypti, Aedes caspius, Aedes vexans, Aedes vittatus, Anopheles arabiensis, Culex pipiens, Culex quinquefasciatus, Culex sitiens, and Culex tritaeniorhynchus. Of these nine species, Aedes vexans, Aedes vittatus, Culex sitiens, and Culex tritaeniorhynchus were registered in GenBank for the first time from Saudi Arabia. The DNA barcodes generated a 100% match to known barcodes of these mosquito species, that also matched with the morphological identification. Ae. vexans was found to be either a case of cryptic species (subspecies) or a new species from the region. However, more research has to be conducted to prove the latter. This study directly contributes to the development of a molecular reference library of mosquito species from the Jazan region and Saudi Arabia. The library is essential for confirmation of species in support of existing mosquito surveillance and control programmes.

APA, Harvard, Vancouver, ISO, and other styles

6

Wasilah, Siti Zainatun. "EFEKTIFITAS LARVASIDA EKSTRAK BUAH BELIMBING MANIS (Averrhoa carambola L) TERHADAP LARVA NYAMUK Aedes aegypti DAN Culex Sp." MEDIA BINA ILMIAH 14, no. 4 (November 7, 2019): 2481. http://dx.doi.org/10.33758/mbi.v14i4.359.

Full text

Abstract:

Ekstrak buah belimbing manis (Averrhoa carambola L) berpotensi sebagai larvasida alami karena mengandung senyawa kimia flavonoid, alkaloid, saponin. Penelitian ini bertujuan untuk mengetahui efektifitas larvasida ekstrak buah belimbing manis terhadap larvasida Aedes aegypti sp dan Culex sp serta nilai LC50 setelah pengamatan 24 jam. Penelitian ini menggunakan konsentrasi dengan vareasi konsentrasi 1,5%, 2%, 2,5%, 3%, 3,5% dan 1 kontrol negatif menggunakan air kran dan 1 kontrol positif menggunakan temefos 0,01%. Jenis Penelitian ini adalah penelitian eksperimental murni dengan rancangan penelitian post test only with control group design, jumlah sampel larva keseluruhan sebanyak 525 larva instar III Aedes aegypti dan 525 larva instar III Culex sp. Kemudian akan dihitung mortalitas larva setelah 24 jam. Data yang diperoleh dianalisis dengan analisis one way annova. Dari hasil penelitian didapatkan bahwa tidak ditemukan kematian pada control negatif. Persentase rerata kematian pada konsentrasi 1,5%, 2%, 2,5%, 3%, 3,5% larva Aedes aegypti yaitu 0; 10,68; 21,36 ;30,68 ;54,68 ;61,36 dan larva Culex sp yaitu 14,67 ;14,67 ;21,34 ;57,34 ;60. Dari hasil uji Annova didapatkan P<0,05 yang berarti bahwa ada perbedaan yang bermakna antara jumlah kematian larva Aedes aegypti maupun larva Culex sp dengan berbagai konsentrasi ekstrak belimbing manis (Averrhoa carambola L) yang diberikan.Nilai LC50 dari uji probit berturut turut untuk larva Aedes aegypti maupun larva Culex sp adalah 3,035% dan 2,92%. Dapat di simpulkan bahwa ekstrak buah belimbing manis (Averrhoa carambola L) efektif dalam membunuh larva Culex sp daripada larva larva nyamuk Aedes aegypti

APA, Harvard, Vancouver, ISO, and other styles

7

Lopes, José, Mario A. N. da Silva, Angela M. Borsato, Vania D. R. B. de Oliveira, and Francisco J. de A. Oliveira. "Aedes (Stegomyia) aegypti L. e a culicideofauna associada em área urbana da região sul, Brasil." Revista de Saúde Pública 27, no. 5 (October 1993): 326–33. http://dx.doi.org/10.1590/s0034-89101993000500002.

Full text

Abstract:

Foram mostrados alguns aspectos sobre a ecologia de 11 espécies de Culicidae que procriam em recipientes, em uma área urbana do Sul do Brasil. Os mais variados tipos de recipientes foram listados como eficientes criadouros para larvas de culicídeos. Aedes aegypti apareceu como espécie recém-introduzida e limitada somente a duas áreas da cidade. As espécies predominantes foram: Culex quinquefasciatus, Culex coronator, Aedes aegypti, Aedes fluviatilis e Limatus durhamii.

APA, Harvard, Vancouver, ISO, and other styles

8

Lourenço-de-Oliveira, Ricardo, Tereza Fernandes da Silva, and Rosemarie Heyden. "Alguns aspectos da ecologia dos mosquitos (Diptera: Culicidae) de uma área de planície (Granjas Calábria), em Jacarepaguá, Rio de Janeiro: II. Frequência mensal e no ciclo lunar." Memórias do Instituto Oswaldo Cruz 80, no. 2 (June 1985): 123–33. http://dx.doi.org/10.1590/s0074-02761985000200001.

Full text

Abstract:

Neste artigo publicamos os resultados de coletas semanais de mosquitos adultos em isca humana, realizadas no extradomicílio, em uma área de planície litorânea (Granjas Calábria), em Jacarepaguá, Rio de Janeiro, de agosto de 1981 a julho de 1982, com o intuito de conhecer sua freqüència mensal e no ciclo lunar. Das 32 espécies obtidas, Aedes scapularis, Culex crybda, Culex declarator, Culex nigripalpus, Culex saltanensis, Mansonia titilans, Phoniomya davisi, Phonyomyia deanei e Phoniomyia theobaldi estiveram presentes em todos os meses do ano. Conforme a variação estacional reunimos as espécies nos seguintes grupos: espécies cuja densidade foi diretamente proporcional à quantidade de chuvas e à temperatura, desenvolvendo-se em criadouros temporários e semipermanentes, como Aedes scapularis, Aedes taeniorhynchus e Culex nigripalpus; espécies ecléticas, cuja freqüência não acompanhou a das chuvas e temperatura, criando-se em coleções aquáticas permanentes, como Culex amazonensis, Culex declarator e Coquillettidia venezuelensis; e espécies com densidade inversamente proporcional à pluviosidade e à temperatura, evoluindo em águas perenes, como Mansoni titillans e Wyeomyia leucostigma. As coletas feitas durante a lua minguante foram as mais produtivas, porém pelos resultados obtidos não pudemos concluir que haja um nítido controle da lua sobre a densidade dos mosquitos.

APA, Harvard, Vancouver, ISO, and other styles

9

Mei Yuana, Dia Bitari, Wahjoe Tjatur Sesulihatien, Achmad Basuki, Tri Harsono, Akhmad Alimudin, and Etik Ainun Rohmah. "Mobile sensing in Aedes aegypti larva detection with biological feature extraction." Bulletin of Electrical Engineering and Informatics 9, no. 4 (August 1, 2020): 1454–60. http://dx.doi.org/10.11591/eei.v9i4.1993.

Full text

Abstract:

According to WHO, Dengue fever is the most critical and most rapidly mosquito-borne disease in the world over 50 years. Currently, the presence and detection of Aedes aegypti larvae (dengue-mosquitoes vector’s) are only quantified by human perception. In large-scale data, we need to automate the process of larvae detection and classification as much as possible. This paper introduces the new method to automate Aedes larvae. We use Culex larva for comparison. This method consists of data acquisition of recorded motion video, spatial movement patterns, and image statistical classification. The results show a significant difference between the biological movements of Aedes aegypti and Culex under the same environmental conditions. In 50 videos consisting of 25 Aedes larvae videos and 25 Culex larvae videos, the accuracy was 84%.

APA, Harvard, Vancouver, ISO, and other styles

10

Djimde, Binta, MaliYoussouf F Keit, Alpha Seydou Yaro, Mouneri Maiga, and Bernard Sodio. "Susceptibilité D’adaptation d’Anopheles Coluzzii Aux Conditions Écologiques De Ponte Et De Développements Larvaires Des Culex Et Aedes." European Scientific Journal, ESJ 18, no. 14 (April 30, 2022): 195. http://dx.doi.org/10.19044/esj.2022.v18n14p195.

Full text

Abstract:

Introduction: Le paludisme demeure encore un problème majeur de santé public au Mali. Les mécanismes de transmission du paludisme en zones rurales sont bien connus mais restent encore tres mal connus en conditions urbaine. La présente étude a pour but de tester la susceptibilité d’adaptation d’An. coluzzii aux conditions écologiques de ponte et de développements larvaires des Culex et Aedes. Méthodes : Trois répétitions ont été conduites en conditions de laboratoire dans un insectarium ayant 26-27ºC comme temperature et 80-95% d’humidité relative. Résultats : Les taux d’éclosion étaient d’environ 90% pour le gîte témoins, 73% et 7% respectivement pour les gîtes Aedes et Culex avec un apport alimentaire. Mais sans apport de nourriture, ces taux sont de 22% pour les gîtes d’Aedes et 2% pour les gîtes de Culex. Les larves d’An. coluzzii étaient incapables de survivre dans les gîtes de Culex, avec ou sans apport alimentaire. Par contre dans les gîtes d’Aedes, leur taux de survie à varié de 53% au 1er jour à seulement 4% au 10e jour sans apport de nourriture. Mais avec un apport alimentaire, le taux de survie dans les gîtes d’Aedes a varié de 63% le 4e jour jusqu’à 21% le 10e jour. Les Mâles et les femelles d’Aedes adultes ont pu survivre jusqu’à 25 jours sans apport alimentaire. Par contre les adultes provenant des gîtes d’Aedes avec apport alimentaire peuvent survivre jusqu’à 39 jours. Conclusion : Cette étude a montré qu’An. coluzzii n’a pas la capacité de survivre dans les gîtes d’eau de Culex, mais il est susceptible de se développer dans les gîtes d’eau d’Aedes. Introduction: Malaria still remains a major public health problem in Mali. The mechanisms of malaria transmission in rural areas are well known but still remain very poorly understood in urban conditions. The current study aims to test the adaptive susceptibility of An. coluzzii to the ecological conditions of egg-laying and larval development of Culex and Aedes. Methods: Three replicates were conducted under laboratory conditions in an insectary with 26-27°C temperature and 80-95% relative humidity. Results: The hatching rates were about 90% for the control breeding site, 73% and 7% respectively for the Aedes and Culex breeding site with food supply. But without food, these rates are 22% for Aedes breeding site and 2% for Culex breeding site. The larvae of An. coluzzii were unable to survive in Culex breeding site, with or without food supply. On the other hand, in Aedes breeding sites, their survival rate varied from 53% on the 1st day to only 4% on the 10th day without food supply. But with a food supply, the survival rate in Aedes breeding site varied from 63% on the 4th day to 21% on the 10th day. Males and females of adult Aedes were able to survive up to 25 days without food supply. On the other hand, adults from Aedes breeding sites with food can survive up to 39 days. Conclusion: This study showed that An. coluzzii does not have the ability to survive in Culex breeding site, but it is likely to grow very well in Aedes breeding site.

APA, Harvard, Vancouver, ISO, and other styles

11

Sharower, MG, MA Latif, and SM Uddin. "Temporal Distribution and Abundance of Mosquito Vectors in Dhaka City." Journal of the Asiatic Society of Bangladesh, Science 46, no. 1 (June 22, 2021): 27–35. http://dx.doi.org/10.3329/jasbs.v46i1.54226.

Full text

Abstract:

Species of Anopheles, Aedes and Culex mosquitoes showed that Anopheles gambiae s.s had the highest number (43.5%) out of the three malaria vectors (viz. Anopheles gambiae, An. arabiensis and An. funestus). For Aedes and Culex species, Aedes aegypti (37.6%) and Culex fatigans (37.1%) had the highest prevalence out of their sibling species. Temperature and rainfall were highly correlated with the abundance of mosquito vectors. It was observed that the rainy season (March to October) recorded the highest number (Total 11 specie) of mosquito vectors collected with the peak (Aedes aegypty, 140) in the months of July (932) and August (976) while the lowest (333) collection was in the dry season (November to February) with lowest (333) in the month of February when there was little or no rains. Asiat. Soc. Bangladesh, Sci. 46(1): 27-35, June 2020

APA, Harvard, Vancouver, ISO, and other styles

12

П, Мөнхзул, Наранбаатар Х, Хатанбаатар И, Цэрэнтогтох Б, Чинчимэг О, Мягмарсүх Ё, and Батцэцэг Г. "ХАРАА, ЕРӨӨ ГОЛЫН САВ ГАЗРЫН ЗАРИМ НУТАГ ДАХЬ ШУМУУЛЫН ТӨРӨЛ, ЗҮЙЛИЙН БҮРЭЛДЭХҮҮН." Mongolian Journal of Agricultural Sciences 20, no. 01 (June 19, 2017): 39–45. http://dx.doi.org/10.5564/mjas.v20i01.773.

Full text

Abstract:

Хараа, Ерөө голын сав газарт Culicidae овгийн Aedes, Culex төрлийн шумуул зонхилж байна. Шумуулын төрөл, зүйлийн бүрэлдэхүүнийг тэдгээрийн бие бүтцийн онцлогоор нь тодорхойлоход Төв аймгийн Борнуур, Батсүмбэр, Баянчандмань суманд Aedes vexans зүйл; Дархан-Уул аймгийн Хонгор, Шарын гол, Орхон сум-Culex restuans, C.p.pipiens зүйл, Сэлэнгэ аймгийн Мандал, Ерөө, Сайхан, Жавхлант сум-C.p.pipiens, C. p.quiequefasciatus зүйл шумуул тус тус илэрч байна.

APA, Harvard, Vancouver, ISO, and other styles

13

Bracco, José Eduardo, and Amaury Lelis Dal Fabbro. "Amostragem por larva-única na vigilância de Aedes aegypti." Revista de Saúde Pública 29, no. 2 (April 1995): 144–46. http://dx.doi.org/10.1590/s0034-89101995000200011.

Full text

Abstract:

Com a finalidade de testar a metodologia de amostragem por larva-única na vigilância entomológica do Aedes aegypti, foram pesquisados domicílios do Município de Araraquara, SP (Brasil). Nos criadouros que continham larvas de Aedes uma delas foi coletada. Como controle, após a coleta da larva-única, todas as larvas foram coletadas para identificação posterior. Esse processo foi repetido no laboratório. Dos 447 domicílios visitados, apenas 12 foram considerados positivos e 20 criadouros foram identificados; destes, 13 continham larvas de Aedes; 5, larvas de Aedes e Culex e 2, larvas de Culex. Os resultados mostram o reconhecimento correto, no campo, de todos os criadouros, evidenciando que o método poderia ser utilizado na vigilância entomológica de municípios sem infestação domiciliar ou infestados apenas com uma única espécie de Aedes.

APA, Harvard, Vancouver, ISO, and other styles

14

Suparyati, Suparyati. "UJI DAYA BUNUH ABATE BERDASARKAN DOSIS DAN WAKTU TERHADAP KEMATIAN LARVA NYAMUK Aedes sp DAN Culex sp." Pena Jurnal Ilmu Pengetahuan dan Teknologi 34, no. 2 (October 5, 2020): 1. http://dx.doi.org/10.31941/jurnalpena.v34i2.1193.

Full text

Abstract:

Dengue Hemorrhagic Fever (DHF) is an acute febrile disease caused by four viruses serotypes from Flafivirus, it is RNA virus from the Flaviviridae family. Dengue is transmitted by the Aedes sp. Culex sp. is a mosquito that become a filariasis (elephantiasis) vector. Both of these diseases are transmitted to humans through mosquito bites. The insecticides as larvacides likes abate or temephos is generally use by the community in Indonesia to control these vectors.The purpose of this study was to determine the most effective doses and time duration needed by abate to kill the Aedes sp and Culex sp. larvae and find out whether there was an effect of different types of Aedes sp. and Culex sp. larvae on abate’s lethality.The research method is an experiment that using 60 Aedes sp. larvae and 60 Culex sp. larvae tested with different abate doses of 8 mg, 10 mg and 12 mg using clean water.The results showed that abate at a dose of 8 mg was lethal to Aedes sp. larvae in 60 minutes and to Culex sp. larvae in 45 minutes. There is difference about abate’s ability to kill Aedes sp. and Culex sp. larvae. The conclusion is the abate’s lethality dose to Aedes sp. and Culex sp. larvae at 8 mg, 10 mg and 12 mg in 100 ml water with different times for each doses (10 mg / 100 ml water is the dose recommended by the government), abate’s lethality power to kill Aedes sp. larvae was longer than Culex sp. larvae.

APA, Harvard, Vancouver, ISO, and other styles

15

Wahono, Tri, Dionisius Widjayanto, and Soenarwan Hery Poerwanto. "Karakteristik Habitat Larva Nyamuk dan Kepadatan Nyamuk Dewasa (Diptera: Culicidae) di Kabupaten Jembrana, Provinsi Bali (Analisis Data Sekunder Rikhus Vektora 2017)." ASPIRATOR - Journal of Vector-borne Disease Studies 14, no. 1 (July 4, 2022): 45–56. http://dx.doi.org/10.22435/asp.v14i1.5038.

Full text

Abstract:

Abstrak. Nyamuk berperan langsung dalam penyebaran berbagai penyakit tular vektor di negara tropis. Tiga genus nyamuk utama penyebaran penyakit di Indonesia adalah Aedes, Culex, dan Anopheles. Kabupaten Jembrana, Provinsi Bali merupakan daerah endemis untuk DBD, malaria maupun filariasis. Kabupaten Jembrana masih melaporkan kasus DBD dan malaria serta dalam tahap pemberian obat pencegahan massal filariasis pada tahun 2020. Pengendalian vektor nyamuk dipengaruhi berbagai hal seperti karakteristik habitat larvanya dan kepadatan nyamuk dewasa. Penelitian menggunakan data Rikhus Vektora 2017 di Kabupaten Jembrana, Provinsi Bali dengan melihat karakteristik habitat larva, pengukuran parameter air, dan kepadatan nyamuk dengan perhitungan Man Hour Density, serta pengukuran parameter lingkungan pada semua tipe ekosistem. Habitat larva Aedes sp. berupa genangan air tawar yang tidak bersentuhan dengan tanah; Culex sp. berupagenangan air tawar bersentuhan dengan tanah; dan Anopheles sp. genangan air tawar-payau yang bersentuhan dengan tanah dengan parameter air yang berbeda, namun masih dalam rentang yang tidak jauh. Kepadatan nyamuk didominasi oleh Culex sp. di semua ekosistem kecuali pada ekosistem pantai dekat dengan pemukiman didominasi oleh Aedes sp. Semua nyamuk dewasa (Aedes sp., Culex sp., dan Anopheles sp.) di Kabupaten Jembrana lebih bersifat bersifat zoofilik. Perilaku semua nyamuk dewasa berbeda di setiap ekosistem, dapat bersifat endofagik maupun eksofagik. Parameter lingkungan di Kabupaten Jembrana memilikipotensi untuk mendukung perkembangbiakan nyamuk.

APA, Harvard, Vancouver, ISO, and other styles

16

Abdul Rahim, Nor Aliza, Marlini Othman, Muna Sabri, and David W. Stanley. "A Midgut Digestive Phospholipase A2 in Larval Mosquitoes, Aedes albopictus and Culex quinquefasciatus." Enzyme Research 2018 (May 15, 2018): 1–9. http://dx.doi.org/10.1155/2018/9703413.

Full text

Abstract:

Phospholipase A2 (PLA2) is a secretory digestive enzyme that hydrolyzes ester bond at sn-2 position of dietary phospholipids, creating free fatty acid and lysophospholipid. The free fatty acids (arachidonic acid) are absorbed into midgut cells. Aedes albopictus and Culex quinquefasciatus digestive PLA2 was characterized using a microplate PLA2 assay. The enzyme showed substantial activities at 6 and 8 μg/μl of protein concentration with optimal activity at 20 and 25 μg/μl of substrate concentration in Aedes albopictus and Culex quinquefasciatus, respectively. PLA2 activity from both mosquitoes increased in a linear function up to 1 hour of the reaction time. Both enzymes were sensitive to pH and temperature. PLA2 showed higher enzyme activities in pH 8.0 and pH 9.0 from Aedes albopictus and Culex quinquefasciatus, respectively, at 40°C of incubation. The PLA2 activity decreased in the presence of 5 mM (Aedes albopictus) and 0.5 mM (Culex quinquefasciatus) site specific PLA2 inhibitor, oleyloxyethylphosphorylcholine. Based on the migration pattern of the partially purified PLA2 on SDS-PAGE, the protein mass of PLA2 is approximately 20–25 kDa for both mosquitoes. The information on PLA2 properties derived from this study may facilitate in devising mosquitoes control strategies especially in the development of inhibitors targeting the enzyme active site.

APA, Harvard, Vancouver, ISO, and other styles

17

Alam, M. F., A. K. Chopra, Mohammed M. Safhi, and V. K. Dua. "Toxicity of Vernonia anthelmintica Linn. (Asteracea) seeds against mosquitoes vectors." Journal of Applied and Natural Science 2, no. 2 (December 1, 2010): 190–93. http://dx.doi.org/10.31018/jans.v2i2.118.

Full text

Abstract:

The Toxicological activity (larvicidal, adulticidal and repellent toxicity) of Vernonia anthelmintica seeds fraction was tested against different species of mosquito vectors viz, malaria (Anopheles culicifacies and Anopheles stephensi), filaria (Culex quinquefasciatus) and dengue (Aedes aegypti). The larvicidal toxicity of Vernonia anthelmintica seeds fraction was evaluated against the early 4th instars larvae of different mosquitoes species. Mean LC50 value of the column fraction KAL-4 from seeds of V. anthelmintica against the larvae of An. culicifacies, An. stephensi, Culex quinquifaciatus and Aedes aegpyti were found to be 64 ppm, 70 ppm, 143 ppm and 166 ppm respectively. The larvicidal toxicity was more against An. culicifacies, An. stephensi than Culex quinquifaciatus and Aedes aegypti. The seed extracts did not show any adulticidal toxicity and repellent toxicity even at 10% concentrated impregnated paper and 5% on human hand, respectively.

APA, Harvard, Vancouver, ISO, and other styles

18

Intan Kurniawati Pramitaningrum and Elfira Maya Sari. "POTENSI EKSTRAK TANAMAN LENCA (SOLANUM NIGRUM) DAN BIJI PEPAYA (CARICA PAPAYA) TERHADAP MORTALITAS LARVA AEDES SP DAN CULEX SP INSTAR IV." Journal of Health (JoH) 7, no. 1 (April 28, 2020): 7–12. http://dx.doi.org/10.30590/vol7-no1-p7-12.

Full text

Abstract:

Cases of Dengue Hemorrhagic Fever (DHF), filariasis and chikungunya in Indonesia in 2018 carried by Aedes sp and Culex sp are still common. Excessive use of synthetic insecticides and larvicides cause resistance and are toxic to humans. The purpose of this study was to determine the concentration and LC50 values of lenca plant extracts (Solanum nigrum) and papaya seeds (Carica papaya) on the larvae of Culex sp and Aedes sp. The concentration variations used in the test were 0% (control), 0.50%, 1.5% and 2.5%. Total mortality of Culex sp larvae against variations in the concentration of Carica papaya extract (p = 0.373) and Solanum nigrum (p = 0.03). LC 50 extract of Solanum nigrum against Culex sp larvae at a concentration of 1.19%. Total mortality of Aedes sp larvae against variations in the concentration of Carica papaya extract (p = 0.11) and Solanum nigrum (p = 0.00). Carica papaya contains alkaloids which are toxic, proteolytic and inhibit larval growth hormone. Solanin in Solanum nigrum is neurotoxic glycalkaloid which can cause disruption of membrane function.

APA, Harvard, Vancouver, ISO, and other styles

19

Ribeiro, José M. C., Rosane Charlab, and Jesus G. Valenzuela. "The Salivary Adenosine Deaminase Activity of the MosquitoesCulex quinquefasciatusandAedes aegypti." Journal of Experimental Biology 204, no. 11 (June 1, 2001): 2001–10. http://dx.doi.org/10.1242/jeb.204.11.2001.

Full text

Abstract:

SUMMARYA cDNA coding for a protein with significant similarity to adenosine deaminase (ADA) was found while randomly sequencing a cDNA library constructed from salivary gland extracts of adult female Culex quinquefasciatus. Prompted by this result, we found high ADA activities in two culicine mosquitoes, Culex quinquefasciatus and Aedes aegypti, but not in the anopheline Anopheles gambiae. Homogenates from Culex quinquefasciatus also have an AMP deaminase activity that is three times greater than the ADA activity, whereas in Aedes aegypti the AMP deaminase activity is less than 10% of the ADA activity. Evidence for secretion of ADA during blood feeding by Aedes aegypti includes the presence of ADA activity in warm solutions probed through a membrane by mosquitoes and in serotonin-induced saliva and a statistically significant reduction in the levels of the enzyme in Aedes aegypti following a blood meal. We could not demonstrate, however, that C. quinquefasciatus secrete ADA in their saliva. Male Aedes aegypti and C. quinquefasciatus, which do not feed on blood, have less than 3% of the levels of ADA found in females. We propose that ADA activity in A. aegypti may help blood feeding by removing adenosine, a molecule associated with both the initiation of pain perception and the induction of mast cell degranulation in vertebrates, and by producing inosine, a molecule that potently inhibits the production of inflammatory cytokines. The role of salivary ADA in Culex quinquefasciatus remains unclear.

APA, Harvard, Vancouver, ISO, and other styles

20

Szadziewski, Ryszard, and Wojciech Giłka. "A new fossil mosquito, with notes on the morphology and taxonomy of other species reported from Eocene Baltic amber (Diptera: Culicidae)." Polish Journal of Entomology / Polskie Pismo Entomologiczne 80, no. 4 (December 1, 2011): 765–77. http://dx.doi.org/10.2478/v10200-011-0057-5.

Full text

Abstract:

A new fossil mosquito, with notes on the morphology and taxonomy of other species reported from Eocene Baltic amber (Diptera: Culicidae) Males of Culiseta gedanica sp. n. and Culex erikae Szadziewski & Szadziewska, 1985 are described, and an incomplete male of Coquillettidia is reported from Baltic amber for the first time. Aedes perkunas Podenas, 1999 is recognized as a junior synonym of Culex erikae, syn. n.Aedes serafini Szadziewski, 1998 is transferred to the genus Ochlerotatus, comb. n. Mosquitoes are rare fossils in Baltic amber. They represent six species of extant genera with a worldwide distribution: Culiseta, Ochlerotatus, Coquillettidia, Culex and Aedes. A key to the identification of males is also provided.

APA, Harvard, Vancouver, ISO, and other styles

21

Hutchings, Rosa Sá Gomes, Roger William Hutchings, Isis Sá Menezes, and Maria Anice Mureb Sallum. "Mosquitoes (Diptera: Culicidae) From the Southwestern Brazilian Amazon: Liberdade and Gregório Rivers." Journal of Medical Entomology 57, no. 6 (June 29, 2020): 1793–811. http://dx.doi.org/10.1093/jme/tjaa100.

Full text

Abstract:

Abstract The mosquito community from remote locations toward the southern border of the Brazilian State of Amazonas, in four localities along the Liberdade and Gregório Rivers, was sampled using CDC and Malaise traps, complemented with net sweeping and immature collections. During May 2011, 190 collections yielded 13,012 mosquitoes, from 15 genera and 112 different species, together with 10 morphospecies, which may represent new undescribed taxa. Among the species collected, there are two new geographical distribution records for the State of Amazonas. Culex, the most abundant genus, also had the highest number of species. Both Aedes and Uranotaenia had the second highest number of species, although they were the second and seventh most abundant, respectively. The most abundant species were Aedes (Ochlerotatus) fulvus (Wiedemann), Aedes (Ochlerotatus) nubilus (Theobald), Culex (Culex) mollis Dyar & Knab, Nyssorhynchus (Nyssorhynchus) oswaldoi sensu lato, Culex (Melanoconion) pedroi Sirivanakarn & Belkin, and Culex (Melanoconion) gnomatos Sallum, Hutchings & Ferreira. The epidemiological implications of mosquito species are discussed and compared with other mosquito inventories from the Amazon region. These results represent the first standardized mosquito inventories of the Liberdade and Gregório Rivers, with the identification of 112 species and 10 morphospecies, within the municipalities of Ipixuna and Eirunepé, from which we have only few records in the published literature.

APA, Harvard, Vancouver, ISO, and other styles

22

Ardianto, Hebert, Arif Nur Muhammad Anshori, and Hamidah Hamidah. "Potensi Larvasida dari Ekstrak Daun Jeruk Bali Citrus maxima terhadap dan Aedes aegypti dan Culex quinquefasciatus." Jurnal Vektor Penyakit 12, no. 1 (October 31, 2018): 19–24. http://dx.doi.org/10.22435/vektorp.v12i1.280.

Full text

Abstract:

Abstract The used of chemical insecticides for mosquito control has caused resistance in themosquito populations. The aims of this study are to find out Lethal Concentration of non-polarextract from pomelo (Citrus maxima) leaf against mosquito larvae after 24 hoursexposure. Aedes aegypti and Culex quinquefasciatus larvae were tested in the study A.Larvicidal assay was using 20 larvae for each concentration in 100 ml solution with 5replications. The non-polar extract was tested at concentrations of 0 ppm, 500 ppm, 1375ppm, 2250 ppm, 3125 ppm, and 4000 ppm. The number of larvae mortality wasdetermined after 24 hours exposure. The dead larvae were counted and the data wasanalyzed using probit analyze. The results showed that non-polar extract from Citrusmaxima Leaf has potential larvicidal, LC90 = 880 ppm for mortality of Aedes aegypti larvae, LC90 = 408 ppm for mortality of Culex quinquefasciatus larvae, the non-polar extract is more toxic against Culex quinquefasciatus than Aedes aegypti larvae. The non-polar extract from pomelo (Citrus maxima) leaf has the potential of being developed aslarvicides for mosquito control. Abstrak Penggunaan insektisida kimia untuk mengontrol nyamuk dapat menyebabkanresistensi pada populasi nyamuk. Tujuan dari penelitian ini adalah untuk menemukannilai Konsentrasi Letal (LC90 ) ekstrak non polar daun jeruk bali (Citrus maxima) terhadap nyamuk setelah 24 jam. Larva yang digunakan dalam penelitian ini adalahlarva Aedes aegypti dan Culex quinquefasciatus. Kematian larva dihitung setelah 24 dan 48 jam.Uji larvasida menggunakan 20 ekor larva untuk setiap konsentrasi di dalam 100ml larutan ekstrak dengan lima replikasi. Ekstrak non polar diuji dengan konsentrasi 0ppm, 500 ppm, 1.375 ppm, 2.250 ppm, 3.125 ppm, dan 4.000 ppm. Angka kematianlarva dihitung setelah 24 jam paparan. Data dihitung dan dianalisa dengan analisisprobit. Hasil penelitian menunjukkan bahwa ekstrak non polar daun Citrus maximaberpotensi sebagai larvasida, Nilai LC90 = 880 ppm untuk kematian larva nyamuk Aedesaegypti, Nilai LC90 = 408 ppm untuk kematian larva nyamuk Culex quinquefasciatus, Ekstrak non polar lebih toksik terhadap larva Culex quinquefasciatus daripada larva Aedes aegypti. Ekstrak non polar dari daun Citrus maxima memiliki potensi untukdikembangkan sebagai larvasida untuk pengendalian nyamuk.

APA, Harvard, Vancouver, ISO, and other styles

23

Bahk, Young Yil, Seo Hye Park, Myung-Deok Kim-Jeon, Sung-Suck Oh, Haneul Jung, Hojong Jun, Kyung-Ae Kim, et al. "Monitoring Culicine Mosquitoes (Diptera: Culicidae) as a Vector of Flavivirus in Incheon Metropolitan City and Hwaseong-Si, Gyeonggi-Do, Korea, during 2019." Korean Journal of Parasitology 58, no. 5 (October 22, 2020): 551–58. http://dx.doi.org/10.3347/kjp.2020.58.5.551.

Full text

Abstract:

The flaviviruses are small single-stranded RNA viruses that are typically transmitted by mosquitoes or tick vectors and are etiological agents of acute zoonotic infections. The viruses are found around the world and account for significant cases of human diseases. We investigated population of culicine mosquitoes in central region of Korean Peninsula, Incheon Metropolitan City and Hwaseong-si. Aedes vexans nipponii was the most frequently collected mosquitoes (56.5%), followed by Ochlerotatus dorsalis (23.6%), Anopheles spp. (10.9%), and Culex pipiens complex (5.9%). In rural regions of Hwaseong, Aedes vexans nipponii was the highest population (62.9%), followed by Ochlerotatus dorsalis (23.9%) and Anopheles spp. (12.0%). In another rural region of Incheon (habitat of migratory birds), Culex pipiens complex was the highest population (31.4%), followed by Ochlerotatus dorsalis (30.5%), and Aedes vexans vexans (27.5%). Culex pipiens complex was the predominant species in the urban region (84.7%). Culicine mosquitoes were identified at the species level, pooled up to 30 mosquitoes each, and tested for flaviviral RNA using the SYBR Green-based RT-PCR and confirmed by cDNA sequencing. Three of the assayed 2,683 pools (989 pools without Anopheles spp.) were positive for Culex flaviviruses, an insect-specific virus, from Culex pipiens pallens collected at the habitats for migratory birds in Incheon. The maximum likelihood estimation (the estimated number) for Culex pipiens pallens positive for Culex flavivirus was 25. Although viruses responsible for mosquito-borne diseases were not identified, we encourage intensified monitoring and long-term surveillance of both vector and viruses in the interest of global public health.

APA, Harvard, Vancouver, ISO, and other styles

24

Istianah, Siti, Budi Mulyaningsih, and Sitti R. Umniyati. "Diversity and Activities of Mosquito in Yogyakarta Special Region Province, Indonesia, a Non Filariasis Endemic Area." E3S Web of Conferences 151 (2020): 01016. http://dx.doi.org/10.1051/e3sconf/202015101016.

Full text

Abstract:

According to data from the Ministry of Health of the Republic of Indonesia in 2018, there were 37 cases of Elephantiasis in Yogyakarta, even though Yogyakarta is not an endemic area of filariasis. This preliminary study was carried out to evaluate the diversity of species, relative abundance, frequency and dominance of mosquitoes in Yogyakarta and to determine the role of mosquitoes as a vector of filariasis. A cross-sectional study was used involving 3 hamlets with elephantiasis cases found in April 2019 in Yogyakarta. Mosquitoes around the house inhabited by the patient with elephantiasis were collected for 12 hours starting from 6:00 p.m. until 6:00 a.m. Mosquitoes were dissected under a dissection microscope and the presence of filaria larvae was observed. A total of 9 mosquitoes species were found. They were Culex vishnui, Culex tritaenorhynchus, Armigeres kesseli, Aedes albopictus, Culex quinquefasciatus, Culex bitaenorhynchus, Anopheles vagus, Anopheles subpictus, Aedes aegypti. The highest diversity, frequency, and dominance was Culex vishnui, while the lowest was Culex quinquefasciatus. There was no filarial larva found during the study.

APA, Harvard, Vancouver, ISO, and other styles

25

Lopes, José, João A. C. Zequi, Valdecir Nunes, Osmar de Oliveira, Bertolino P. de O. Neto, and Walter Rodrigues. "Immature culicidae (Diptera) collected from the Igapó lake located in the urban area of Londrina, Paraná, Brazil." Brazilian Archives of Biology and Technology 45, no. 4 (December 2002): 465–71. http://dx.doi.org/10.1590/s1516-89132002000600010.

Full text

Abstract:

The Igapó lake dam is located in an urban area in Londrina, Paraná, Brazil. A one year study of the Culicidae immature forms was conducted in this ecosystem. From a total of 962 collected larvae following genera were identified: Anopheles (59.36%), Culex (19.65%) Aedeomyia (19.23%) Aedes (1.50%), and Uranotaenia (0.10%). The 10 most abundant species were Anopheles strodei, Aedeomyia squamipennis, Culex (Melanoconium) spp., Culex mollis, Anopheles oswaldoi, Anopheles evansae, Culex coronator, Culex quinquefasciatus, Anopheles argyritarsis and Aedes terrens respectively. An. strodei prevailed with greater averages during July and September, showing a significant negative lineal correlation in relation to the rainfall. Ad. squamipennis showed a positive lineal correlation with the temperature with smaller population averages during June, August and September of 1997. Cx. (Melanoconium) spp. populations were constant throughout the year. High Culicidae population density could bring problems to quality of human life, thus strong measures to avoid and control of mosquito population growth in the lake are recommended.

APA, Harvard, Vancouver, ISO, and other styles

26

Raghavendra, H. L., T. R. Prashith Kekuda, Chaithra R. Shetty, and Manjula Shantaram. "Insecticidal efficacy of Rubus steudneri and Rubus apetalus against Aedes (Diptera: Culicidae) and Culex (Diptera: Culicidae) mosquitoes." Biomedicine 41, no. 2 (September 7, 2021): 427–30. http://dx.doi.org/10.51248/.v41i2.1052.

Full text

Abstract:

Introduction and Aim: Rubus steudneri Schweinf. and Rubus apetalus Poir. belonging to the family Rosaceae is one of the ethnomedicinal plants used widely in Ethiopia as food, for construction and as medicine. To the best of our knowledge, insecticidal activity of R. steudneri and R. apetalus has not been investigated so far. In this study, we report insecticidal efficacy of R. steudneri and R. apetalus in terms of larvicidal effect against II and III instar larvae of Aedes and Culex mosquitoes. Materials and Methods: The shade-dried and powdered leaves were extracted using methanol by maceration process. Insecticidal activity of leaf extract was determined by larvicidal assay against II and III instar larvae of Aedes and Culex species. LC50 and LC90 values were calculated. Results: The leaf extract of both Rubus species exhibited concentration dependent larvicidal effect. II instar larvae were shown to be highly susceptible than III instar larvae. Among leaf extracts, extract of R. steudneri exhibited marked insecticidal activity when compared to extract of R. apetalus as revealed by lower LC50 and LC90 values. Culex larvae displayed marked susceptibility to leaf extracts when compared to Aedes larvae. Conclusion: Marked larvicidal effect was observed against larvae of Culex species when compared to Aedes species as indicated by lower LC50 and LC90 values. It is evident that the leaf extracts of both Rubus contain insecticidal principles.

APA, Harvard, Vancouver, ISO, and other styles

27

Vujic, A., A. Stefanovic, I. Dragicevic, T. Matijevic, L. Pejcic, M. Knezevic, D. Krasic, and S. Veselic. "Species composition and seasonal dynamics of mosquitoes (Diptera: Culicidae) in flooded areas of Vojvodina, Serbia." Archives of Biological Sciences 62, no. 4 (2010): 1193–206. http://dx.doi.org/10.2298/abs1004193v.

Full text

Abstract:

Three years of sampling (2007-2009) of adult mosquitoes in the area of Vojvodina (Serbia) by dry ice baited CDC traps has provided information on mosquito species composition, prevalence and seasonal activity. A total of 58,247 adult mosquitoes were collected comprising twenty species belonging to the following genera: Anopheles Meigen (Diptera: Culicidae), Aedes Meigen, Culex L, Culiseta Felt and Mansonia Blanchard. The seven most common species collected during this study were: Culex pipiens L. complex (35.6%), Aedes vexans (Meigen) (33.4%), Aedes sticticus (Meigen) (15.2%), Anopheles maculipennis Meigen complex (4%), Mansonia richiardii (Ficalbi) (3.8%), Aedes cinereus Meigen (3.6%), Aedes pulchritarsis (Rondani) (3%) which made up 98% of all specimens. Seasonal population dynamics differed between years and between mosquito species in relation to wetland, urban and forest habitats, and was primarily influenced by the water level of the Danube, Sava and Tisa rivers, precipitation and temperature.

APA, Harvard, Vancouver, ISO, and other styles

28

Lourenço-de-Oliveira, Ricardo, and Tereza Fernandes da Silva. "Alguns aspectos da ecologia dos mosquitos (Diptera: Culicidae) de uma área de planície (Granjas Calábria), em Jacarepaguá, Rio de Janeiro: III. Preferência horária das fêmeas para o hematofagismo." Memórias do Instituto Oswaldo Cruz 80, no. 2 (June 1985): 195–201. http://dx.doi.org/10.1590/s0074-02761985000200010.

Full text

Abstract:

Apresentamos os resultados de observação sobre o ciclo circadiano de atividade hematofágica dos mosquitos, em Granja Calábria, Jacarepaguá, na planície litorânea do Rio de Janeiro, onde realizamos, em isca humana, ao ar livre, capturas semanais, de 8 às 10, de 13 às 15 e 18 às 20 horas, de agosto de 1981 a julho de 1982, além de três capturas horárias de 24 horas seguidas. A maioria das espécies locais revelou caráter crepuscular vespertino e noturno. Contudo Limatus durhami, Phoniomyia davisi, Wyeomyia leucostigma e Wyeomyia (Dendromyia) sp. foram essencialmente diurnas, enquanto Anopheles albitarsis, Culex chidesteri e Culex quinquefasciatus foram obtidas somente no crepúsculo vespertino e à noite. Embora Anopheles aquasalis, Culex coronator, Culex saltanensis, Culex crybda e Coquillettidia venezuelensis fossem preponderantemente noturnas e Phoniomyia deanei e Phoniomyia theobaldi principalmente diurnas, obtivemô-las algumas vezes, fora do horário preferencial, sendo que Phoniomyia deanei teve nítido incremento pré-crepuscular vespertino. Aedes scapularis, Aedes taeniorhynchus e Mansonia titillans, espécies mais ecléticas, picaram durante todo o nictêmero, mas com flagrante acentuação crepuscular vespertina.

APA, Harvard, Vancouver, ISO, and other styles

29

Guarido, Milehna M., Kamini Govender, Megan A. Riddin, Maarten Schrama, Erin E. Gorsich, Basil D. Brooke, Antonio Paulo Gouveia Almeida, and Marietjie Venter. "Detection of Insect-Specific Flaviviruses in Mosquitoes (Diptera: Culicidae) in Northeastern Regions of South Africa." Viruses 13, no. 11 (October 25, 2021): 2148. http://dx.doi.org/10.3390/v13112148.

Full text

Abstract:

Mosquitoes in the Aedes and Culex genera are considered the main vectors of pathogenic flaviviruses worldwide. Entomological surveillance using universal flavivirus sets of primers in mosquitoes can detect not only pathogenic viruses but also insect-specific ones. It is hypothesized that insect-specific flaviviruses, which naturally infect these mosquitoes, may influence their vector competence for zoonotic arboviruses. Here, entomological surveillance was performed between January 2014 and May 2018 in five different provinces in the northeastern parts of South Africa, with the aim of identifying circulating flaviviruses. Mosquitoes were sampled using different carbon dioxide trap types. Overall, 64,603 adult mosquitoes were collected, which were screened by RT-PCR and sequencing. In total, 17 pools were found positive for insect-specific Flaviviruses in the mosquito genera Aedes (12/17, 70.59%) and Anopheles (5/17, 29.41%). No insect-specific viruses were detected in Culex species. Cell-fusing agent viruses were detected in Aedes aegypti and Aedes caballus. A range of anopheline mosquitoes, including Anopheles coustani, An. squamosus and An. maculipalpis, were positive for Culex flavivirus-like and Anopheles flaviviruses. These results confirm the presence of insect-specific flaviviruses in mosquito populations in South Africa, expands their geographical range and indicates potential mosquito species as vector species.

APA, Harvard, Vancouver, ISO, and other styles

30

Arroussi, Djamel Eddine Rachid, Ali Bouaziz, and Hamid Boudjelida. "Mosquito survey reveals the first record of Aedes (Diptera: Culicidae) species in urban area, Annaba district, Northeastern Algeria." Polish Journal of Entomology 90, no. 1 (March 31, 2021): 14–26. http://dx.doi.org/10.5604/01.3001.0014.8065.

Full text

Abstract:

The diversity, distribution and ecology of mosquitoes, especially arbovirus vectors are important indices for arthropod-borne diseases control. The mosquito larvae were collected in different habitats in four sites of Annaba district, Algeria, during the period of March 2018 to February 2019 and the properties of larval habitats were recorded for each site. The systematic study revealed the presence of 8 species belonging to 4 genera; including Culex pipiens (Linnaeus, 1758), Culex modestus (Ficalbi, 1889), Culex theileri (Theobald, 1903), Culiseta longiareolata (Macquart, 1838), Anopheles labranchiae (Falleroni, 1926), Anopheles claviger (Meigen, 1804), Aedes aegypti (Linnaeus, 1762) and Aedes albopictus (Skuse, 1894). Among the species, C. pipiens presented the highest species abundance (RA %) (55.23%) followed by C. longiareolata (20.21%). The Aedes species are recorded for the first time in the study urban area. Variation of diversity in different sites depends on the type of breeding habitat. These results provided important information on species diversity, distribution and factors associated with breeding habitats. They could be used for the mosquito control and to prevent the spread of mosquito-borne diseases to the population of the region.

APA, Harvard, Vancouver, ISO, and other styles

31

Staunton, Kyran M., Donovan Leiva, Alvaro Cruz, Joelyn Goi, Carlos Arisqueta, Jianyi Liu, Mark Desnoyer, et al. "Outcomes from international field trials with Male Aedes Sound Traps: Frequency-dependent effectiveness in capturing target species in relation to bycatch abundance." PLOS Neglected Tropical Diseases 15, no. 2 (February 25, 2021): e0009061. http://dx.doi.org/10.1371/journal.pntd.0009061.

Full text

Abstract:

Aedes aegypti and Aedes albopictus vector dengue, chikungunya and Zika viruses. With both species expanding their global distributions at alarming rates, developing effective surveillance equipment is a continuing priority for public health researchers. Sound traps have been shown, in limited testing, to be highly species-specific when emitting a frequency corresponding to a female mosquito wingbeat. Determining male mosquito capture rates in sound traps based on lure frequencies in endemic settings is the next step for informed deployment of these surveillance tools. We field-evaluated Male Aedes Sound Traps (MASTs) set to either 450 Hz, 500 Hz, 550 Hz or 600 Hz for sampling Aedes aegypti and/or Aedes albopictus and compared catch rates to BG-Sentinel traps within Pacific (Madang, Papua New Guinea) and Latin American (Molas, Mexico and Orange Walk Town, Belize) locations. MASTs set to 450–550 Hz consistently caught male Ae. aegypti at rates comparable to BG-Sentinel traps in all locations. A peak in male Ae. albopictus captures in MASTs set at 550 Hz was observed, with the lowest mean abundance recorded in MASTs set to 450 Hz. While significantly higher abundances of male Culex were sampled in MASTs emitting lower relative frequencies in Molas, overall male Culex were captured in significantly lower abundances in the MASTs, relative to BG-Sentinel traps within all locations. Finally, significant differences in rates at which male Aedes and Culex were positively detected in trap-types per weekly collections were broadly consistent with trends in abundance data per trap-type. MASTs at 550 Hz effectively captured both male Ae. aegypti and Ae. albopictus while greatly reducing bycatch, especially male Culex, in locations where dengue transmission has occurred. This high species-specificity of the MAST not only reduces staff-time required to sort samples, but can also be exploited to develop an accurate smart-trap system—both outcomes potentially reducing public health program expenses.

APA, Harvard, Vancouver, ISO, and other styles

32

Veggiani Aybar, Cecilia A., and Gustavo C. Rossi. "Mosquitoes (Diptera: Culicidae) of the meridian zone of the subtropical mountainous rainforest of Argentina: update on the fauna and geographical distribution." Check List 13, no. 2 (April 25, 2017): 2102. http://dx.doi.org/10.15560/13.2.2102.

Full text

Abstract:

We report here three new mosquito records in the Yungas ecoregion [Culex (Culex) dolosus, Culex (Microculex) Pleuristriatus Series and Howardina sp.] and the expansion of the distributions of 17 species of the genera Anopheles, Culex, Aedes, Psorophora, and Toxorhynchites for Argentina. These findings broaden the total number of species recorded for northwestern Argentina to 174, from which number 57 species are distributed in the Tucumán province, 21 in the Catamarca, and 96 in the Salta. Also included is information on immature instars collected in phytotelmata.

APA, Harvard, Vancouver, ISO, and other styles

33

Zequi, João A. C., José Lopes, and Ísis M. Medri. "Imaturos de Culicidae (Diptera) encontrados em recipientes instalados em mata residual no munícipio de Londrina, Paraná, Brasil." Revista Brasileira de Zoologia 22, no. 3 (September 2005): 656–61. http://dx.doi.org/10.1590/s0101-81752005000300021.

Full text

Abstract:

Fragmentos de mata na área urbana ou periurbana podem ser locais favoráveis a procriação de Culicidae. Esse trabalho teve como objetivo levantar as espécies de culicídeos que utilizam criadouros artificiais, suas coexistência e as flutuações populacionais em uma reserva de mata localizada em Londrina - PR. Realizou-se coletas quinzenais de outubro de 1995 a setembro de 1996 em pneus e internódios de bambu armadilha que foram instalados ao nível do solo e outros internódios instalados a 2 m de altura. Coletou-se 12.656 espécimes, pertencentes a cinco gêneros e 11 espécies. As espécies mais abundantes nos criadouros foram Limatus durham Theobald, 1901, Culex eduardoi Casal & Garcia, 1968, Aedes terrens (Walker, 1856), Culex quinquefasciatus Say, 1823 e Aedes albopictus (Skuse, 1894). O maior número de indivíduos foi coletado em pneus, sendo que Limatus durham e Aedes terrens, apresentaram preferência nesse criadouro. A presença de Aedes aegypti (Linnaeus, 1762), Aedes albopictus e Haemagogus leucocelaenus (Dyar & Shannon, 1924) em diferentes coletas indica que esse tipo de ambiente não deve ser ignorado nas ações de controle de vetores, merecendo constante monitoramento.

APA, Harvard, Vancouver, ISO, and other styles

34

Ribeiro, José M. C., and Ivo M. B. Francischetti. "Platelet-activating-factor-hydrolyzing phospholipase C in the salivary glands and saliva of the mosquitoCulex quinquefasciatus." Journal of Experimental Biology 204, no. 22 (November 15, 2001): 3887–94. http://dx.doi.org/10.1242/jeb.204.22.3887.

Full text

Abstract:

SUMMARYA phospholipase C activity specific for platelet-activating factor (PAF), named PAF phosphorylcholine hydrolase, was found in the salivary glands and saliva of the human-feeding mosquito Culex quinquefasciatus. The enzymatic activity was demonstrated by inhibition of PAF-induced platelet aggregation, and by identification of substrate consumption and production of diacyl glyceride by electrospray-ionisation mass spectrometry. The activity has a neutral optimal pH and an apparent molecular mass of 40–50 kDa. Two anthropophilic mosquito species, Aedes aegypti and Anopheles gambiae, do not have this salivary activity. The results are interpreted within the evolutionary context of the genera Culex, Aedes and Anopheles.

APA, Harvard, Vancouver, ISO, and other styles

35

Calzolari, Mattia, Líbia Zé-Zé, Daniel Růžek, Ana Vázquez, Claire Jeffries, Francesco Defilippo, Hugo Costa Osório, et al. "Detection of mosquito-only flaviviruses in Europe." Journal of General Virology 93, no. 6 (June 1, 2012): 1215–25. http://dx.doi.org/10.1099/vir.0.040485-0.

Full text

Abstract:

The genus Flavivirus, family Flaviviridae, includes a number of important arthropod-transmitted human pathogens such as dengue viruses, West Nile virus, Japanese encephalitis virus and yellow fever virus. In addition, the genus includes flaviviruses without a known vertebrate reservoir, which have been detected only in insects, particularly in mosquitoes, such as cell fusing agent virus, Kamiti River virus, Culex flavivirus, Aedes flavivirus, Quang Binh virus, Nakiwogo virus and Calbertado virus. Reports of the detection of these viruses with no recognized pathogenic role in humans are increasing in mosquitoes collected around the world, particularly in those sampled in entomological surveys targeting pathogenic flaviviruses. The presence of six potential flaviviruses, detected from independent European arbovirus surveys undertaken in the Czech Republic, Italy,Portugal, Spain and the UK between 2007 and 2010, is reported in this work. Whilst the Aedes flaviviruses, detected in Italy from Aedes albopictus mosquitoes, had already been isolated in Japan, the remaining five viruses have not been reported previously: one was detected in Italy, Portugal and Spain from Aedes mosquitoes (particularly from Aedes caspius), one in Portugal and Spain from Culex theileri mosquitoes, one in the Czech Republic and Italy from Aedes vexans, one in the Czech Republic from Aedes vexans and the last in the UK from Aedes cinereus. Phylogenetic analysis confirmed the close relationship of these putative viruses to other insect-only flaviviruses.

APA, Harvard, Vancouver, ISO, and other styles

36

Darmawan, Wahyu. "DIFFERENCES OF CULEX SPP AND AEDES SPP LARVAE MORTALITY RATES ON THE USE OF THEMEFOS." SANITAS: Jurnal Teknologi dan Seni Kesehatan 12, no. 1 (August 9, 2021): 99–105. http://dx.doi.org/10.36525/sanitas.2021.9.

Full text

Abstract:

Eradication of the mosquito vectors that cause several diseases is still being carried out today where methods are still being developed. This research aims to identify the mortality rate of Culex spp. and Aedes spp. larvae for the use themefos or abate with sowed and wrapped of filter paper. The author uses quasi-experimental to observe that mortality. The design was devided into two groups, giving themepos/abate with a national dose of (1gr/10 liters of water) in 24 hours with threatment sowed and wrapped of filter paper through the analysis of varians/annova test to observe the varians of the time of mortality of Culex spp. and Aedes spp. larvae as well as probit analysis to see the probability of time of the larvae’s death.The result of this research is no defference in the mortality of Culex spp. and Aedes spp. larvae for the uses of themefos/abate with sowed and wrapped of filter paper. The authors suggestion is giving themefos or abate by wrapping filter paper preverably for larvae in a stagnant water such as Aedes spp larvae because it does not provide residual granules in water reservoirs used for human activities while the used of themepos/abate with sowed can also be used for a stagnant water or has a small discharge.

APA, Harvard, Vancouver, ISO, and other styles

37

Heinig-Hartberger, Mareike, Fanny Hellhammer, David D. J. A. Zöller, Susann Dornbusch, Stella Bergmann, Katerina Vocadlova, Sandra Junglen, Michael Stern, Kwang-Zin Lee, and Stefanie C. Becker. "Culex Y Virus: A Native Virus of Culex Species Characterized In Vivo." Viruses 15, no. 1 (January 14, 2023): 235. http://dx.doi.org/10.3390/v15010235.

Full text

Abstract:

Mosquitoes are vectors of various pathogens that cause diseases in humans and animals. To prevent the outbreak of mosquito-borne diseases, it is essential to control vector populations, as treatment or vaccination for mosquito-borne diseases are often unavailable. Insect-specific viruses (ISVs) have previously been described as being potentially helpful against arboviral disease outbreaks. In this study, we present the first in vivo characterization of the ISV Culex Y virus (CYV). CYV was first isolated from free-living Culex pipiens mosquitoes in 2010; then, it was found in several mosquito cell lines in a further study in 2018. For mammalian cells, we were able to confirm that CYV does not replicate as it was previously described. Additionally, we found that CYV does not replicate in honey bees or locusts. However, we detected replication in the Culex pipiens biotype molestus, Aedes albopictus, and Drosophila melanogaster, thus indicating dipteran specificity. We detected significantly higher mortality in Culex pipiens biotype molestus males and Drosophila melanogaster, but not in Aedes albopictus and female Culex pipiens biotype molestus. CYV could not be transmitted transovarially to offspring, but we detected venereal transmission as well as CYV in mosquitos’ saliva, indicating that an oral route of infection would also be possible. CYV’s dipteran specificity, transmission routes, and killing effect with respect to Culex males may be used as powerful tools with which to destabilize arbovirus vector populations in the future.

APA, Harvard, Vancouver, ISO, and other styles

38

Orlova, Margarita V., Tatyana A. Smirnova, Lyudmila A. Ganushkina, Victoria Y. Yacubovich, and Roudolf R. Azizbekyan. "Insecticidal Activity of Bacillus laterosporus." Applied and Environmental Microbiology 64, no. 7 (July 1, 1998): 2723–25. http://dx.doi.org/10.1128/aem.64.7.2723-2725.1998.

Full text

Abstract:

ABSTRACT The Bacillus laterosporus strains 921 and 615 were shown to have toxicity for larvae of the mosquitoes Aedes aegypti, Anopheles stephensi, and Culex pipiens. The larvicidal activity of B. laterosporus was associated with spores and crystalline inclusions. Purified B. laterosporus 615 crystals were highly toxic for Aedes aegypti and Anopheles stephensi.

APA, Harvard, Vancouver, ISO, and other styles

39

Debboun, Mustapha, and Robert D. Hall. "Mosquitoes (Diptera: Culicidae) Sampled from Treeholes and Proximate Artificial Containers in Central Missouri." Journal of Entomological Science 27, no. 1 (January 1, 1992): 19–28. http://dx.doi.org/10.18474/0749-8004-27.1.19.

Full text

Abstract:

The immatures of eight mosquito species in six genera were collected from treeholes and artificial containers at three sites in central Missouri from May - October, 1986 - 1988. The species most frequently collected was Aedes triseriatus (Say), followed in descending order by Anopheles barberi (Coquillett), Orthopodomyia signifera (Coquillett), Aedes hendersoni (Cockerell), Culex restuans Theobald, Culex territans Walker, Psorophora ferox (Humboldt), and Toxorhynchites rutilus septentrionalis (Dyar & Knab). Larvae of Ps. ferox collected from a basal white oak treehole were the first record of this species from this habitat. Larvae of Cx. restuans and Cx. territans were collected only from artificial containers and not from treeholes. Aedes triseriatus was opportunistic with respect to tree species inhabited, with distributions roughly paralleling the relative abundance of available treeholes. Artificial containers, even when enriched with leaf litter, did not constitute an adequate mimic for treeholes when sampling Ae. triseriatus immatures.

APA, Harvard, Vancouver, ISO, and other styles

40

Lafferty, Kevin D., John P. McLaughlin, Daniel S. Gruner, Taylor A. Bogar, An Bui, Jasmine N. Childress, Magaly Espinoza, et al. "Local extinction of the Asian tiger mosquito ( Aedes albopictus ) following rat eradication on Palmyra Atoll." Biology Letters 14, no. 2 (February 2018): 20170743. http://dx.doi.org/10.1098/rsbl.2017.0743.

Full text

Abstract:

The Asian tiger mosquito, Aedes albopictus, appears to have been extirpated from Palmyra Atoll following rat eradication. Anecdotal biting reports, collection records, and regular captures in black-light traps showed the species was present before rat eradication. Since then, there have been no biting reports and no captures over 2 years of extensive trapping (black-light and scent traps). By contrast, the southern house mosquito, Culex quinquefasciatus, was abundant before and after rat eradication. We hypothesize that mammals were a substantial and preferred blood meal for Aedes , whereas Culex feeds mostly on seabirds. Therefore, after rat eradication, humans and seabirds alone could not support positive population growth or maintenance of Aedes . This seems to be the first documented accidental secondary extinction of a mosquito. Furthermore, it suggests that preferred host abundance can limit mosquito populations, opening new directions for controlling important disease vectors that depend on introduced species like rats.

APA, Harvard, Vancouver, ISO, and other styles

41

Ningsih, Murniati, Helmi yetti, and R. Irpan Pahlepi. "TYPES AND ABUNDANCE OF MOSQUITOES IN KAHYAPU VILLAGE, ENGGANO ISLAND, NORTHEST BENGKULU." Science Heritage Journal 5, no. 2 (October 10, 2021): 41–43. http://dx.doi.org/10.26480/gws.02.2021.41.43.

Full text

Abstract:

Research has been carried out on the types and abundance of mosquitoes in Kahyapu Village, Enggano Island, Northest Bengkulu in December 2018 – May 2019 with the goals to knowing the types and abundance of mosquitoes found in Kahyapu Village, Enggano Island, Northest Bengkulu. The research location points were determined by purposive sampling and the mosquito collection at each other location point was determined using the Human Landing Collection method. The mosquitoes obtained were grouped by genus and species, the data obtained were analyzed descriptively. From the results of the study obtained 4 species of mosquitoes, namely Aedes albopictus, Armigeres subalbatus, Culex fuscocephala and Culex quinquefasciatus. mosquito with high abundance are Aedes albopictus.

APA, Harvard, Vancouver, ISO, and other styles

42

Calheiros, Cláudia ML, Gilberto Fontes, Paul Williams, and Eliana MM Rocha. "Experimental Infection of Culex (Culex) quinquefasciatus and Aedes (Stegomyia) aegypti with Wuchereria bancrofti." Memórias do Instituto Oswaldo Cruz 93, no. 6 (November 1998): 855–60. http://dx.doi.org/10.1590/s0074-02761998000600029.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Dambach, Peter, Till Bärnighausen, Anges Yadouleton, Martin Dambach, Issouf Traoré, Patricia Korir, Saidou Ouedraogo, et al. "Is biological larviciding against malaria a starting point for integrated multi-disease control? Observations from a cluster randomized trial in rural Burkina Faso." PLOS ONE 16, no. 6 (June 18, 2021): e0253597. http://dx.doi.org/10.1371/journal.pone.0253597.

Full text

Abstract:

Objectives To evaluate the impact of anti-malaria biological larviciding with Bacillus thuringiensis israelensis on non-primary target mosquito species in a rural African setting. Methods A total of 127 villages were distributed in three study arms, each with different larviciding options in public spaces: i) no treatment, ii) full or iii) guided intervention. Geographically close villages were grouped in clusters to avoid contamination between treated and untreated villages. Adult mosquitoes were captured in light traps inside and outside houses during the rainy seasons of a baseline and an intervention year. After enumeration, a negative binomial regression was used to determine the reductions achieved in the different mosquito species through larviciding. Results Malaria larviciding interventions showed only limited or no impact against Culex mosquitoes; by contrast, reductions of up to 34% were achieved against Aedes when all detected breeding sites were treated. Culex mosquitoes were captured in high abundance in semi-urban settings while more Aedes were found in rural villages. Conclusions Future malaria larviciding programs should consider expanding onto the breeding habitats of other disease vectors, such as Aedes and Culex and evaluate their potential impact. Since the major cost components of such interventions are labor and transport, other disease vectors could be targeted at little additional cost.

APA, Harvard, Vancouver, ISO, and other styles

44

Abed, Wurood H., and Dhia K. Kareem. "Identification of some Fourth Instar Larvae of the Mosquito (Diptera, Culicidae) using Scanning Electron Microscope (SEM) in Basrah Province, Iraq." Basrah Journal of Agricultural Sciences 35, no. 2 (October 15, 2022): 173–84. http://dx.doi.org/10.37077/25200860.2022.35.2.12.

Full text

Abstract:

The study was conducted to determine the distinguishing characteristics of the fourth-instar larvae that used to identify the six species of mosquitoes (Diptera: Culicidae) in Basrah Province. Some morphological characteristics, pectin teeth, comb scales, lateral palatine brush filaments, and microspine patterns on the siphon were studied by using the scanning electron microscopy technique. The results showed that there are morphological differences in these micro-structures between the species, Aedes caspius (Pallas, 1771), Culex pipines (Linnaeus, 1758), Culex pusillus Macquart, 1850, Culex tritaeniorhynchus Giles,1901, Culiseta longiareolata (Mecquart, 1838) and Uranotaenia unguiculata Edwards, 1913.

APA, Harvard, Vancouver, ISO, and other styles

45

Dantur Juri, Maria J., Edecio I. Villarroel Martinez, Gabriela C. Flores, Marina Stein, and Maria A. Mureb Sallum. "New Records of Mosquito Species in Northwestern Argentina." Journal of the American Mosquito Control Association 36, no. 3 (September 1, 2020): 201–3. http://dx.doi.org/10.2987/20-6955.1.

Full text

Abstract:

ABSTRACT Four mosquito species—Anopheles (Nyssorhynchus) galvaoi, An. (Anopheles) mediopunctatus, Culex (Culex) lahillei, and Uranotaenia (Uranotaenia) geométrica—were recorded for the first time in northwestern Argentina. In addition, Psorophora (Grabhamia) confinnis and Cx. (Melanoconion) pedroi are reported for the first time in Jujuy Province, while Aedes (Ochlerotatus) hastatus, Coquillettidia (Rhynchotaenia) hermanoi, An. (Ano.) fluminensis, and An. (Ano.) punctimacula were reported for the first time in Tucumán Province.

APA, Harvard, Vancouver, ISO, and other styles

46

Kain, Morgan P., Eloise B. Skinner, Tejas S. Athni, Ana L. Ramirez, Erin A. Mordecai, and Andrew F. van den Hurk. "Not all mosquitoes are created equal: A synthesis of vector competence experiments reinforces virus associations of Australian mosquitoes." PLOS Neglected Tropical Diseases 16, no. 10 (October 4, 2022): e0010768. http://dx.doi.org/10.1371/journal.pntd.0010768.

Full text

Abstract:

The globalization of mosquito-borne arboviral diseases has placed more than half of the human population at risk. Understanding arbovirus ecology, including the role individual mosquito species play in virus transmission cycles, is critical for limiting disease. Canonical virus-vector groupings, such as Aedes- or Culex-associated flaviviruses, have historically been defined using virus detection in field-collected mosquitoes, mosquito feeding patterns, and vector competence, which quantifies the intrinsic ability of a mosquito to become infected with and transmit a virus during a subsequent blood feed. Herein, we quantitatively synthesize data from 68 laboratory-based vector competence studies of 111 mosquito-virus pairings of Australian mosquito species and viruses of public health concern to further substantiate existing canonical vector-virus groupings and quantify variation within these groupings. Our synthesis reinforces current canonical vector-virus groupings but reveals substantial variation within them. While Aedes species were generally the most competent vectors of canonical “Aedes-associated flaviviruses” (such as dengue, Zika, and yellow fever viruses), there are some notable exceptions; for example, Aedes notoscriptus is an incompetent vector of dengue viruses. Culex spp. were the most competent vectors of many traditionally Culex-associated flaviviruses including West Nile, Japanese encephalitis and Murray Valley encephalitis viruses, although some Aedes spp. are also moderately competent vectors of these viruses. Conversely, many different mosquito genera were associated with the transmission of the arthritogenic alphaviruses, Ross River, Barmah Forest, and chikungunya viruses. We also confirm that vector competence is impacted by multiple barriers to infection and transmission within the mesenteron and salivary glands of the mosquito. Although these barriers represent important bottlenecks, species that were susceptible to infection with a virus were often likely to transmit it. Importantly, this synthesis provides essential information on what species need to be targeted in mosquito control programs.

APA, Harvard, Vancouver, ISO, and other styles

47

Islam, Farzana, and Homaira Prithul. "Abundance of Mosquito Larvae at Jagannath University and Dhaka University Campus of Dhaka, Bangladesh." Bangladesh Journal of Zoology 49, no. 2 (November 19, 2021): 321–29. http://dx.doi.org/10.3329/bjz.v49i2.56267.

Full text

Abstract:

A year-round survey on the abundance of mosquito larvae was conducted at Jagannath University - and Dhaka University - Campus from October 2018 to September 2019. A number of total 4415 mosquito larvae were collected of which 3086 were identified as Culex and 1329 were Aedes. Only 3 species belonging to 2 genera were identified in this study. At Jagannath University campus, highest number of Culex larvae was recorded in the month of August which was 167 (10.9%) and the lowest number was recorded in February which was 66 (4.3%), on the other hand, highest number of Aedes larvae was recorded in the month of July which was 137 (23.8%) and the lowest number was found in December which was 9 (1.6%). At Dhaka University campus, the highest number of Culex larvae was found in the month of April, which was 179 (11.5%) and the lowest number was found in June, which was 66 (4.3%), on the other hand, the highest number of Aedes larvae was found in the month of June which was 200 (26.5%) and lowest number was found in February which was 8 (1.06%). This study could be helpful in launching larvicidal programs in a more cost-effective way at these two urban public universities of Dhaka city. Bangladesh J. Zool. 49 (2): 321-329, 2021

APA, Harvard, Vancouver, ISO, and other styles

48

Seo, Min-Goo, Hak Seon Lee, Sung-Chan Yang, Byung-Eon Noh, Tae-Kyu Kim, Wook-Gyo Lee, and Hee Il Lee. "National Monitoring of Mosquito Populations and Molecular Analysis of Flavivirus in the Republic of Korea in 2020." Microorganisms 9, no. 10 (October 2, 2021): 2085. http://dx.doi.org/10.3390/microorganisms9102085.

Full text

Abstract:

The Korea Disease Control and Prevention Agency has established centers at 16 locations to screen vector populations and pathogens. The aims of this study were to determine the relative spatiotemporal distributions of mosquitoes that are flavivirus vectors, and to correlate them with instances of flaviviral disease in the Republic of Korea (ROK). We collected 67,203 mosquitoes in traps at 36 collection sites in 30 urban regions and migratory bird habitats in 2020. The trap index was 36.6, and the predominant mosquito species were the Culex pipiens complex, Armigeres subalbatus, Aedes albopictus, Aedes vexans, and Culex tritaeniorhynchus. The mosquitoes were pooled into 4953 pools to monitor flavivirus infection. We determined that the minimum infection rate of flavivirus was 0.01%. Japanese encephalitis virus (JEV) was detected in only seven pools of Culex orientalis from Sangju, and we isolated JVE from two pools. All detected JEV was found to be genotype V by phylogenetic analysis. To the best of our knowledge, this is the first study to isolate genotype V JVE from Culex orientalis in the ROK. Subsequent geographical and ecological studies on mosquitoes will help improve our understanding of the relative risk of flavivirus infection. Future studies should analyze mosquito species distribution and improve flavivirus monitoring and long-term surveillance.

APA, Harvard, Vancouver, ISO, and other styles

49

Helmiyetti, Helmiyetti, Nuril Septianisa Kurnia, and Yahya Yahya. "JENIS DAN KELIMPAHAN NYAMUK (DIPTERA: CULICIDAE) DI DESA BANJAR SARI KECAMATAN ENGGANO KABUPATEN BENGKULU UTARA." Konservasi Hayati 15, no. 1 (April 10, 2019): 30–38. http://dx.doi.org/10.33369/hayati.v1i1.10945.

Full text

Abstract:

Mosquitoes, one of the insects groups that have a high interaction with humans with a wide spread and cosmopolite. Factors that influence the spread of mosquitoes are the form of topography of an area and environmental factors. The aim of this research was to determine the type and abundance of mosquitoes (Diptera: Culicidae) in Banjarsari Village, Enggano District, North Bengkulu. The research was conducted in December 2018 to March 2019 with the sampling method of purposive sampling and capture of mosquitoes carried out by the Human Landing Collection and Resting Collection methods. The time of catching mosquitoes starts in the morning at 06.00-08.00 WIB, afternoon at 15.00-17.00 WIB and at night 18.00-24.00 WIB. The mosquito was identified in the Laboratory of Animal Physiology, Department of Biology, Faculty of Mathematics and Natural Sciences, Bengkulu University. The results of this research were analyzed in a qualitative frequency distribution with 3 groups of categories: many, medium and few categories. The types of mosquitoes obtained consisted of 5 types including Aedes albopictus, Armigeres subalbatus, Culex bitaeniorhynchus, Culex solitarius and Culex quinquefasciatus. The abundance of mosquitoes with many categories is found in Aedes albopictus and the abundance of categories with few species is found in Culex solitarius mosquitoes.

APA, Harvard, Vancouver, ISO, and other styles

50

Ragavendran, Chinnasamy, Nawal Kishore Dubey, and Devarajan Natarajan. "Beauveria bassiana (Clavicipitaceae): a potent fungal agent for controlling mosquito vectors of Anopheles stephensi, Culex quinquefasciatus and Aedes aegypti (Diptera: Culicidae)." RSC Advances 7, no. 7 (2017): 3838–51. http://dx.doi.org/10.1039/c6ra25859j.

Full text

Abstract:

The efficacy of bioactive compounds identified from Beauveria bassiana extracts as effective larvicidal and pupicidal agents against Anopheles stephensi, Culex quinquefasciatus and Aedes aegypti mosquito vectors under laboratory conditions are studied.

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Aedes; Culex'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles