Academic literature on the topic 'Bean weevil'
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Journal articles on the topic "Bean weevil"
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Jevremovic, Stojan, Jelica Lazarevic, Miroslav Kostic, Slobodan Krnjajic, Vladan Ugrenovic, Andja Radonjic, and Igor Kostic. "Contact application of Lamiaceae botanicals reduces bean weevil infestation in stored beans." Archives of Biological Sciences 71, no. 4 (2019): 665–76. http://dx.doi.org/10.2298/abs190617049j.
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The bean weevil (Acanthoscelides obtectus, Say) is a serious pest of stored bean seeds. Bean weevil control relies heavily on the use of synthetic insecticides. In the search for a sustainable alternative, the residual contact toxicity and anti-oviposition activity of thyme (Thymus vulgaris L.), rosemary (Rosmarinus officinalis L.) and basil (Ocimum basilicum L.) essential oils as well as their dominant components (thymol, ?-pinene, 1,8-cineole and linalool) were tested against A. obtectus adults. Out of the seven tested botanicals, T. vulgaris oil, thymol and linalool exhibited the highest toxic potential (>90% mortality). Females were less susceptible than males. The insecticidal activity of these botanicals was much greater when they were applied on glass compared to direct application to the bean. All tested botanicals reduced oviposition by bean weevil females. T. vulgaris oil, thymol and ?-pinene also deterred bean weevil oviposition, as revealed by a two-choice test. Our research shows that T. vulgaris oil and thymol are promising and sustainable alternatives to synthetic pesticides for protecting stored beans against the bean weevil.
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Cardona, Cesar, Carmen E. Posso, Julia Kornegay, Jose Valor, and Miguel Serrano. "Antibiosis Effects of Wild Dry Bean Accessions on the Mexican Bean Weevil and the Bean Weevil (Coleoptera: Bruchidae)." Journal of Economic Entomology 82, no. 1 (February 1, 1989): 310–15. http://dx.doi.org/10.1093/jee/82.1.310.
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Kljajic, Petar, Nada Milosevski, and Ilija Peric. "Malathion and Deltamethrin efficacy in controlling Acanthoscelides obtectus say weevil during long storage of beans." Pesticidi 18, no. 1 (2003): 23–32. http://dx.doi.org/10.2298/pif0301023k.
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Efficacy of Malathion and Deltamethrin contact insecticides in controlling Acanthoscelides obtectus Say bean weevil over a period of 12 months following treatment in laboratory conditions (simulating storage conditions) was investigated. Using appropriate methods (EPPO and other), beans were treated with recommended amounts of Malathion - and Deltamethrin-based insecticide powders. Over a period of 12 months, bioassay was used to determine A. obtectus adult mortality after 2, 7 and 14 days of contact with treated material. Additionally, potential occurrence of F1 generation progeny was monitored over the 14 days of contact with insecticides. The results show that, regardless of the age of Malathion and Deltamethrin deposits, two and seven days of contact with treated beans was insufficient to achieve full mortality of bean weevils, while their mortality was total (100%) after 14 days of contact, the only exception being a Malathion deposit aged 240 days and Deltamethrin deposit aged 90 and 360 days. After 14 days of contact with all Malathion and Deltamethrin deposits on beans and additional 7 days of recovery on untreated material, the mortality of bean weevil adults was total. Weevil adults of F1 generation were found only on Malathion deposits aged 240 and 360 days, while no progeny was registered on Deltamethrin deposits. The tested contact insecticides, applied as powder formulas, can provide full protection of beans from weevils over a 12-month storage period.
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Fory, L. F., F. Finardi-Filho, C. M. Quintero, T. C. Osborn, C. Cardona, M. J. Chrispeels, and J. E. Mayer. "α-Amylase Inhibitors in Resistance of Common Beans to the Mexican Bean Weevil and the Bean Weevil (Coleoptera: Bruchidae)." Journal of Economic Entomology 89, no. 1 (February 1, 1996): 204–10. http://dx.doi.org/10.1093/jee/89.1.204.
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Evenden, M. L., C. M. Whitehouse, A. St. Onge, L. Vanderark, J. P. Lafontaine, S. Meers, and H. A. Cárcamo. "Potential for semiochemical-based monitoring of the pea leaf weevil (Coleoptera: Curculionidae) on field pea (Fabaceae) in the Canadian Prairie Provinces." Canadian Entomologist 148, no. 5 (March 15, 2016): 595–602. http://dx.doi.org/10.4039/tce.2016.7.
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AbstractThe pea leaf weevil, Sitona lineatus (Linnaeus) (Coleoptera: Curculionidae), is an important pest of field peas, Pisum sativum Linnaeus (Fabaceae), and faba beans, Vicia faba Linnaeus (Fabaceae), that has recently become established in the Prairie Provinces of Canada. Male pea leaf weevils produce an aggregation pheromone, 4-methyl-3,5-heptanedione, in the spring when overwintered weevils migrate to fields to feed and mate. The current study tests the attractiveness of the aggregation pheromone with and without synthetic bean volatiles to pea leaf weevils in the spring and in the fall when weevils seek perennial legumes to feed and overwinter. Modified Leggett traps similar to those used in Europe did not retain weevils in this study. Aggregation pheromone-baited pitfall traps caught male and female weevils in the spring and fall. Weevils were not attracted to traps baited with three bean volatiles, (Z)-3-hexen-1-yl acetate, (Z)-3-hexen-1-ol, and linalool. Bean volatiles did enhance response to pheromone, but only in the fall. Weevils were captured in most semiochemical-baited traps in a 1:1 sex ratio, but female-biased catch in control traps might indicate greater activity of females in the trap vicinity. This study lays the groundwork for semiochemical-based monitoring to detect pea leaf weevil spread in the Prairie Provinces.
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Dimitrova Apostolova, Elena, Nedyalka Georgieva Palagacheva, Diyana Lilova Svetleva, and Antonia Vlaeva Mateeva. "INVESTIGATIONS ON THE RESISTANCE OF SOME BULGARIAN COMMON BEAN GENOTYPES TOWARDS BEAN WEEVIL (ACANTHOSCELIDES OBTECTUS SAY)." Journal of Central European Agriculture 14, no. 4 (2013): 1530–40. http://dx.doi.org/10.5513/jcea01/14.4.1391.
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Kamfwa, Kelvin, James S. Beaver, Karen A. Cichy, and James D. Kelly. "QTL Mapping of Resistance to Bean Weevil in Common Bean." Crop Science 58, no. 6 (September 6, 2018): 2370–78. http://dx.doi.org/10.2135/cropsci2018.02.0106.
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Jairoce, Carlos F., Cristiano M. Teixeira, Camila F. P. Nunes, Adrise M. Nunes, Claudio M. P. Pereira, and Flávio R. M. Garcia. "Insecticide activity of clove essential oil on bean weevil and maize weevil." Revista Brasileira de Engenharia Agrícola e Ambiental 20, no. 1 (January 2016): 72–77. http://dx.doi.org/10.1590/1807-1929/agriambi.v20n1p72-77.
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ABSTRACT Bean weevil and maize weevil can cause considerable damage to stored grains. These insects are mainly controlled with synthetic chemical insecticides, which may bring serious problems to human and environmental health. Therefore, this study aimed to evaluate the efficiency of the essential oil of clove [Syzygium aromaticum (L.) Merrill & Perry (Myrtaceae) (origin: Bahia, season Sep.2014-Feb.2015)] in the control of S. zeamais and A. obtectus under laboratory conditions. The essential oil was extracted through the classic hydrodistillation process and its chemical components were identified via gas chromatography. Oil efficiency was tested at the doses of 35, 17.9, 8.9, 3.6, 1.8, 0.4 and 0.2 μL g-1 (derived from a pilot study) for insect control and the LC50 was determined. The results showed that eugenol was the major compound. The essential oil caused mortality of 100% for both species 48 h after treatment with the concentrations of 17.9 and 35 μL g-1. The LC50 for A. obtectus was 9.45 μL g-1, against 10.15 μL g-1 for S. zeamais. The use of clove essential oil represents a promising alternative to be used under storage conditions for the integrated management of stored grains pests.
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Pimenta, M., R. A. Mata, M. Venzon, D. N. C. Cunha, E. M. G. Fontes, C. S. S. Pires, and E. R. Sujii. "Survival and preference of cotton boll weevil adults for alternative food sources." Brazilian Journal of Biology 76, no. 2 (March 1, 2016): 387–95. http://dx.doi.org/10.1590/1519-6984.16214.
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Abstract Plants that have potential as alternative food source (floral nectar, pollen and plant tissues) to the boll weevil during the intercropping season were evaluated considering the prevalent conditions of Cerrado in the Central Brazil. Initially, we tested the nutritional adequacy for the survival of the insect of flower resource (pollen and nectar) provided by eight plant species (fennel, mexican sunflower, castor bean, okra, hibiscus, sorghum, pigeonpea and sunn hemp). Subsequently, we tested if the resources provided by the selected plants continued to be exploited by the boll weevil in the presence of cotton plant, its main food source average longevity of boll weevil adults was significantly longer when they were fed on hibiscus’ flowers (166.6 ± 74.4) and okra flowers (34.7 ± 28.9) than when they fed on flowers of other six species. Subsequently, the preference of the boll weevil in the use of resources was compared between okra or hibiscus and cotton plants, in dual choice experiments. Boll weevils preferred plants of the three species in the reproductive stages than those in vegetative stages. Although the cotton plant in the reproductive stage was the most preferred plant of all, boll weevils preferred flowering okra and hibiscus than cotton at the vegetative stage.
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Mesele, Tariku, Kumela Dibaba, and Esayas Mendesil. "Farmers’ Perceptions of Mexican Bean Weevil, Zabrotes subfasciatus (Boheman), and Pest Management Practices in Southern Ethiopia." Advances in Agriculture 2019 (April 11, 2019): 1–10. http://dx.doi.org/10.1155/2019/8193818.
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The common bean, Phaseolus vulgaris L., is one of the most important sources of protein in Ethiopia and other developing countries. However, the Mexican bean weevil, Zabrotes subfasciatus (Boheman), is a major constraint of stored common bean that causes qualitative and quantitative losses. This study was conducted to assess farmers’ knowledge and perceptions of Mexican bean weevil, to examine farmers’ pest management practices, and to identify challenges of pest management practices to develop integrated pest management (IPM) strategies. A survey of 148 smallholder common bean farmers was conducted at Mareka and Loma districts in southern Ethiopia. The majority (75%) of the farmers stored common bean in polypropylene bags while less than 10% of the farmers stored beans in ‘Diya’ (a traditional storage structure). Most (60.8%) farmers stored their beans in seed (threshed) form, and the majority (63.5%) of them stored their beans for 3-5 months. The majority of the farmers had knowledge about the Mexican bean weevil; they could identify damaged seeds based on the ‘holes’ on the seed (72.3%) and circular ‘windows’ on the seed (20.0%). About 45% of the farmers mentioned the high amount of loss at the time of storage. In addition, most farmers (53.4%) estimated 26-50% loss in storage. Most farmers reported the use of pesticidal plants for control of Mexican bean weevil, while only a few farmers reported they had applied insecticide in their store. Education level and family size had a positive and statistically significant impact on the use of pesticidal plants for the control of Mexican bean weevil. Furthermore, education level also influences the use of chemical insecticide. Results highlighted the need to use improved storage technology and to train farmers in postharvest handling practices as a component to develop IPM approach in order to minimize losses occurring along the value chains of the common bean.
Dissertations / Theses on the topic "Bean weevil"
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Crudgington, Helen Sarah. "Sexual conflict in the bean weevil, Callosobruchus maculatus." Thesis, University of Sheffield, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366152.
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Mazzonetto, Fábio. "Efeito de genótipos de feijoeiro e de pós de origem vegetal sobre Zabrotes subfasciatus (Boh.) e Acanthoscelides obtectus (SAY) (Col.: Bruchidae)." Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/11/11146/tde-31072002-141929/.
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Avaliou-se o efeito isolado e associado de pós de origem vegetal e de genótipos de feijoeiro sobre o comportamento, biologia e danos de Zabrotes subfasciatus (Boh.) e Acanthoscelides obtectus (Say). Inicialmente, foi avaliado o efeito dos pós obtidos de 18 plantas sobre a atratividade e mortalidade dos adultos, e oviposição. A seguir, foi testado o efeito de 12 genótipos de feijoeiro incluindo materiais melhorados contendo arcelina (Arc1, Arc2, Arc3 e Arc4) e sem essa proteína (IAC Carioca Aruã, IAC Carioca Pyatã, IAC Carioca Akytã, IAC Maravilha, IAC Una, IAC Bico de Ouro, Porrillo 70 e Goiano Precoce) sobre a oviposição (com e sem chance de escolha) e biologia dos insetos. Com base nestes resultados, foram selecionados, para cada espécie de inseto, quatro genótipos (três resistentes e um suscetível) e quatro pós vegetais, para os quais foi avaliado o efeito associado sobre a atratividade e mortalidade dos adultos, preferência para oviposição, biologia e danos causados pelos insetos. Concluiu-se que: a) os pós obtidos da parte aérea de Chenopodium ambrosioides (erva-de-santa-maria), f. (forma) 1 e f.2; de folhas de Eucalyptus citriodora (eucalipto cheiroso), de Mentha pulegium (poejo) e de Ruta graveolens (arruda), e de cascas de frutos de Citrus reticulata (laranja cv. Murcote) são repelentes aos adultos das duas pragas; b) os pós obtidos de folhas de Ocimum basilicum (alfavaca) e de O. minimum (manjericão) são repelentes apenas para Z. subfasciatus, enquanto os pós de cascas de frutos de Citrus sinensis (laranja cv. Pêra) e de frutos de Lafoensia glyptocarpa (mirindiba) apresentam efeito repelente apenas em relação a A. obtectus; c) o pó de folhas de L. glyptocarpa apresenta atratividade a Z. subfasciatus; d) os pós de C. ambrosioides (f.2), M. pulegium, O. basilicum e R. graveolens apresentam efeito altamente tóxico aos adultos de Z. subfasciatus, causando 100% de mortalidade e impedindo a oviposição; e) em relação a A. obtectus, há total mortalidade de adultos e ausência de oviposição, com o uso de pós de C. ambrosioides (f.2) e de folhas de Coriandrum sativum (coentro); f) em teste sem chance de escolha, o genótipo Arc3 é menos ovipositado por Z. subfasciatus que 'IAC Carioca Pyatã' e 'IAC Bico de Ouro', enquanto, em relação a A. obtectus os materiais são igualmente preferidos para oviposição; g) os materiais contendo arcelina (Arc1, 2, 3 e 4) apresentam resistência do tipo não-preferência para alimentação e/ou antibiose a Z. subfasciatus, alongando o período de desenvolvimento (ovo-adulto) e reduzindo o peso dos adultos, a longevidade e a fecundidade; h) em relação a A. obtectus, a resistência do tipo não-preferência para alimentação e/ou antibiose só ocorre com o Arc1, genótipo em que há alongamento do período de desenvolvimento e menor peso dos adultos; i) 'Goiano Precoce' é o material mais adequado ao desenvolvimento dos dois insetos; j) com o emprego associado de pós vegetais e genótipos resistentes de feijoeiro, ocorre apenas efeito aditivo (e não sinérgico) das duas técnicas de controle para ambas as espécies de insetos; k) o peso consumido de grãos de feijão por Z. subfasciatus e A. obtectus não é afetado pelos pós inseticidas; esse peso, entretanto, é menor nos genótipos contendo arcelina para os dois insetos.It was evaluated the isolated and associated effects of powders from different vegetal and bean genotypes on the behaviour, biology and damage of Zabrotes subfasciatus (Boh.) and Acanthoscelides obtectus (Say). Initially, it was evaluated the effect of powders of 18 plants on the attractivity and mortality of the adults, and oviposition. Then, the effect of 12 bean genotypes was tested including materials with arcelin (Arc1, Arc2,Arc3 and Arc4) and without this protein (IAC Carioca Aruã, IAC Carioca Pyatã, IAC Carioca Akytã, IAC Maravilha, IAC Una, IAC Bico de Ouro, Porrillo 70 and Goiano Precoce) on the oviposition (free-choice and no-choice tests) and biology of the insects. Based on these results, four genotypes (three resistant and one susceptible) and four powders were selected for each insect species. It was evaluated the associated effect on the attractivity and mortality of the adults, preference for oviposition, biology and damage caused by the insects. It was concluded that: powders of the aerial part from Chenopodium ambrosioides f. (form) 1 and f.2; leaves from Eucalyptus citriodora, from Mentha pulegium and from Ruta graveolens, and rinds of fruits from Citrus reticulata (cv. Murcote) are repellents to the adults of the two pests; b) powders of leaves from Ocimum basilicum and O. minimum are repellent only for Z. subfasciatus, while powders of rinds of fruits from Citrus sinensis (cv. Pêra) and fruits from Lafoensia glyptocarpa shows repellent effect only on A. obtectus; c) powder of leaves from L. glyptocarpa shows attractivity on Z. subfasciatus; d) powders from C. ambrosioides (f.2), M. pulegium, O. basilicum and R. graveolens show high toxicity on adults of Z. subfasciatus, causing 100% mortality and inhibiting the oviposition; e) in relation to A. obtectus, total mortality of adults and no oviposition is observed with the use of powders from C. ambrosioides (f.2) and leaves from Coriandrum sativum; f) in no-choice test, Arc3 was less oviposited by Z. subfasciatus than IAC Carioca Pyatã and IAC Bico de Ouro, while in relation to A. obtectus the materials are equally preferred for oviposition; g) the materials with arcelin (Arc1, 2, 3 and 4) show non-preference resistance for feeding and/or antibiose to the Z. subfasciatus, prolonging the time for insect development (egg-adult) and reducing the adult weight, longevity and fecundity; h) in relation to A. obtectus, non-preference resistance for feeding and/or antibiose only occurs with Arc1, genotype that prolongs the development period and reduces the adult weight; i) Goiano Precoce is the most suitable material for the development of both insects; j) with the association of vegeta powders and resistant bean genotypes, only additive effect (and not syhngistic) is observed with the two control tactics for both insect species; k) the weight of consumed bean grains for Z. subfasciatus and A. obtectus was not affected by insecticide powders; however the weight, however, was lower in the genotypes with arcelin for both insects.
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Parsons, Deborah Mary Joy. "Oviposition and host selection by the common bean beetle, Acanthoscelides obtectus (Say) (Coleoptera: Bruchidae)." Thesis, Royal Holloway, University of London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325156.
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Carvalho, Luiz Henrique Torres de. "Atividade inseticida de pós de vegetais e do gesso em relação ao caruncho do feijão, Zabrotes subfasciatus (Boheman, 1833) (Coleoptera: Chrysomelidae)." Universidade Federal de Alagoas, 2008. http://repositorio.ufal.br/handle/riufal/218.
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Bean weevil, Zabrotes subfasciatus (Boheman, 1833) (Coleoptera: Chrysomelidae) is
considered the main insect-pest of the stored beans. Currently its control is achieved
through protective spray (fumigations). New techniques of alternative control are being
used to minimize the use of insecticides such as the use of resistant cultivars and
insecticide plants through powders, extracts and oils. This work was divided into four
chapters. The first consisted of a review of literature. In the second evaluated the
method of control through the use of powders plants of different parts of plants from
three species of the genus Annona, seeds powders of Piper nigrum L. and plaster. In the
third it has developed a method of control through the use of powders plants of different
parts of plants from three species of the genus Annona; powder seeds of Piper nigrum
L.; Ageratum conyzoides L. (branch and leaf); Ricinus communis L. (leaf) and
Azadirachta indica A. juss associated with plaster. And the fourth was tested after four
species of plants: Piper nigrum L., Chenopodium ambrosioides, Coriandrum sativum L.
and Cymbopogon citratus (DC) Stapf and plaster. All experiments were conducted
aiming to observe possible adverse effects of these materials on the Z. subfasciatus. In
general, two couples of newly emerged adults, Z. subfasciatus were placed in plastic
pots of 250 mL. Where in the second chapter was used 10 g of beans, mixed with 1 g of
the powder of each anonácea (leaves and branches, individually), the black pepper
powder and plaster. The third chapter 10 g of beans, mixed with 0.5 g of powder of each
treatment and 0.5 g of plaster, thereby completing 1 g of different powders of plants
associated with plaster. In the forth chapter 5 g of the bean group Rio, at concentrations
of 0.5, 0.25; 0125 g of powder per container. Were evaluated in the second chapter:
cumulative mortality of first-eighth day, oviposition in the thirteenth day and quantity of
emergence holes in the eighth fortieth day after the installation of bioassays. In the third
chapter: cumulative mortality of first-ninth day (alternate days), oviposition on the
fifteenth day, number of emergence holes in fortieth seventh day, after the installation
of the bioassays, and the fourth chapter: mortality, oviposition, emergency in 2º
generation of adults, number of beans with eggs deposited on the surface by adults
emerged and repellency of Z. subfasciatus. In the second chapter more effective
treatments were the powder of black pepper, causing rapid death in adults and
consequently lower numbers of eggs and emergence holes in the grains. In the third
chapter was the most effective treatment the powder of the black pepper, causing rapid
death in adults and also interfered in oviposition and the number of holes for
emergencies of insects. And in the last chapter found that the powder of P. nigrum L.
and C. ambrosioides showed highly toxic effect on adults of Z. subfasciatus causing
100% of death until the 5º day, not providing fertile eggs in grain treated with these
materials, the emergence of adults impossible to Z. subfasciatus in the three
concentrations were tested and repellents for adults, the concentration of 0.25 g / 5 g
beans. The peak of oviposition occurred at 4 and 5 days after the emergence of adults of
Z. subfasciatus. For the other powder, did not interfere in the variables analyzed,
because the treatment did not differ statistically witness except in the variable
repellency of Z. subfasciatus, because based on the Index
of Preference of the powder C.citratuswa srepellent.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
O caruncho-do-feijão, Zabrotes subfasciatus (Boheman, 1833) (Coleoptera: Chrysomelidae) é considerado o principal inseto-praga dos grãos de feijão armazenado. Atualmente seu controle é realizado através de pulverização protetora (fumigações). Novas técnicas de controle alternativo vêm sendo utilizadas para minimizar o uso de inseticidas, como a utilização de cultivares resistentes e plantas inseticidas por meio de pós, extratos e óleos. Esse trabalho foi dividido em quatro capítulos. O primeiro constituiu-se de uma revisão de literatura. No segundo avaliou-se o método de controle através da utilização de pós vegetais de diferentes partes de plantas de três espécies do gênero Annona, do pó das sementes de Piper nigrum L. e do gesso. No terceiro desenvolveu-se um método de controle através da utilização de pós vegetais de diferentes partes de plantas de três espécies do gênero Annona; do pó das sementes de Piper nigrum L.; Ageratum conyzoides L. (ramo e folha); Ricinus communis L. (folha) e Azadirachta indica A. juss associados ao gesso. E no quarto foram testados pós de quatro espécies vegetais: Piper nigrum L., Chenopodium ambrosioides, Coriandrum sativum L. e Cymbopogon citratus (DC.) Stapf e do gesso. Todos os experimentos foram realizados visando observar possíveis efeitos adversos desses materiais sobre Z. subfasciatus. Em geral, dois casais de adultos recém-emergidos, de Z. subfasciatus foram colocados em potes plásticos de 250 mL. Onde no segundo capítulo foi utilizado 10 g de feijão, homogeneizado com 1 g dos pós de cada anonácea (folhas e ramos, individualmente), pó da pimenta-do-reino e gesso. No terceiro capítulo 10 g de feijão, homogeneizado com 0,5 g dos pós de cada tratamento e 0,5 g de gesso, completando-se assim 1 g de diferentes pós-vegetais associados ao gesso. No quarto capítulo 5 g de feijão do grupo carioca, nas concentrações de 0,5; 0,25; 0,125 g de pó por recipiente. Foram avaliados no segundo capítulo: mortalidade acumulada do primeiro ao oitavo dia, oviposição no décimo terceiro dia e quantidade de orifícios de emergência no quadragésimo oitavo dia. No terceiro capítulo: mortalidade acumulada do primeiro ao nono dia (dias alternados), oviposição no décimo quinto dia, número de orifícios de emergência no quadragésimo sétimo dia; e no quarto capítulo: mortalidade, oviposição, emergência na 2ª geração de adultos, número de feijão com ovos depositados em sua superfície por adultos emergidos e repelência de Z. subfasciatus. No segundo capítulo os tratamentos mais eficazes foram os pós de pimenta-do-reino, que causou rápida mortalidade em adultos e conseqüentemente menor números de ovos e de orifícios de emergência nos grãos. No terceiro capítulo o tratamento mais eficaz foi o pó de pimenta-do-reino, que causou excelente mortalidade em adultos e também interferiu na oviposição e no número de orifícios de emergências dos insetos. E no ultimo capítulo verificou-se que os pós de P. nigrum L. e C. ambrosioides apresentaram efeito altamente tóxico aos adultos de Z. subfasciatus causando 100% de mortalidade até o 5º dia, não proporcionando ovos férteis nos grãos tratados com estes materiais, impossibilitaram a emergência dos adultos de Z. subfasciatus nas três concentrações testadas e foram repelentes aos adultos, na concentração 0,25 g / 5 g de feijão. O pico de oviposição ocorreu no 4º e 5º dias após a emergência de adultos de Z. subfasciatus. No caso dos outros pós, não interferiram nas variáveis analisadas, pois não diferiram estatisticamente do tratamento testemunha com exceção na variável repelência de Z. subfasciatus, pois com base no Índice de Preferência o pó do C. citratus foi repelente.
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Oliveira, Sharrine Omari Domingues de. "Competição larval no caruncho-pequeno-do-feijão Zabrotes subfasciatus (COLEOPTERA: CHRYSOMELIDAE: BRUCHINAE)." Universidade Federal de Viçosa, 2012. http://locus.ufv.br/handle/123456789/3952.
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Previous issue date: 2012-06-04Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Strategies of intraspecific competition among individuals can be considered as accommodative, in which there is coexistence and accommodation between competitors, or as confrontation where only one individual secures for itself the necessary resource for their survival and reproduction and the others die. Despite the importance of competition in life history strategies and behavior, there was any study conducted in Zabrotes subfasciatus. Given its importance as a pest of stored beans, this study aimed to evaluate the behavior of larval competition in Z. subfasciatus, as well as the population effects when larval competition in two distinct varieties of beans. In addition to the quantitative results of larval competition, which are commonly used to recognize the prevailing competition strategy, as the survival rate, larval developmental time, the proportion of females, males and females mass, total biomass, longevity and fecundity of females and mass of progeny; larval competition was observed directly by X-ray equipment digital high resolution. Image analysis allowed observing all stages of development from larva to adult, and the formation of the galleries during the larval period, showing the movement and the subsequent placement of individuals on the sides of the grain. This pattern of behavior becomes unquestionable the competition accommodative behavior of Z. subfasciatus.
Estratégias de competição intraespecífica podem ser consideradas como acomodativas, na qual há uma coexistência e acomodação entre competidores, ou como ativa ou por disputa, onde apenas um indivíduo assegura para si o recurso necessário para sua sobrevivência e reprodução e os demais morrem. Apesar da importância da competição em estratégias de história de vida e comportamental, nenhum estudo foi realizado em Zabrotes subfasciatus. Tendo em vista sua importância como praga de feijão armazenado, o presente trabalho objetivou avaliar o comportamento de competição larval em Z. subfasciatus, assim como os efeitos populacionais da estratégia de competição larval quando em duas variedades distintas de feijão. Além dos resultados quantitativos de competição larval, os quais normalmente são usados para reconhecer a estratégia de competição prevalecente, como a taxa de sobrevivência, tempo de desenvolvimento larval, proporção de fêmeas, massa de machos e fêmeas, biomassa total, longevidade e fecundidade de fêmeas, e massa da progênie; a competição larval foi observada diretamente através de equipamento de raios-X digital de alta resolução. A análise das imagens possibilitou observar todas as fases do desenvolvimento, desde a larva até o adulto, e a formação das galerias durante o período larval, evidenciando a movimentação e o posterior posicionamento dos indivíduos nas laterais do grão. Este padrão de comportamento torna inquestionável o comportamento de competição acomodativo de Z. subfasciatus.
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Araújo, Alice Maria Nascimento de. "Bioatividade de espécies vegetais em relação a Zabrotes subfasciatus (Boheman, 1833) (Coleoptera: Chrysomelidae: Bruchinae) em feijão (Phaseolus vulharis L. 1753)." Universidade Federal de Alagoas, 2010. http://repositorio.ufal.br/handle/riufal/245.
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The common bean Phaseolus vulgaris (Linnaeus, 1753) (Fabaceae) is a legume of great importance as a source of vegetal protein in Brazil. The insect damages bean grains and reduces its quality, affecting the appearance, palatability and acceptability by the consumers. The weevil Zabrotes subfasciatus (Boheman, 1833) (Coleoptera: Chrysomelidae: Bruchinae) is one of the main pests of stored beans. The larvae of this insect open galleries in the bean grains, attacking the cotyledons and can completely destroy them. The methods currently used to control storage pest species are the purges and treatment with residual insecticides that are not always effective to exterminate the pests or to prevent reinfestation, and may result in problems such as insect resistance and animals and humans poisoning. This work aimed to evaluate the insecticidal activity of ten different plant species for the control of Z. subfasciatus. The weevil repellence, mortality, oviposition and adult emergence were evaluated in a non-choice test and the weevil oviposition and adult emergence were evaluated in a free-choice test. The plant species used were: Anadenanthera colubrina (Vell.) (cebil), Annona muricata L (soursop), Azadirachta indica A. Juss. (neem), Caesalpinia pyramidalis Tul. ( catingueira ), Chenopodium ambrosioides L. (Mexican tea), Cymbopogon citratus Stapf. (lemongrass), Cymbopogon sp. (citronella), Momordica charantia L. (bitter melon), Ricinus communis L. (castor oil plant) and Piper nigrum L. (Black pepper). For the repellence evaluation, a repellence index was established, using the t test for comparing the means. For the mortality and oviposition analysis, in the non-choice test, the F test was used and, when necessary, the means were compared by the Tukey´s test. Mortality, oviposition and adult emergence data were verified and, through a regression analysis, it could be concluded that C. ambrosioides and P. nigrum powders were highly toxic to the weevils, both causing 100% mortality after only four days of exposure. The powders from A. muricata, A. indica, C. pyramidalis, C. ambrosioides, Cymbopogon sp., C. citratus and P. nigrum were repellent to Z. subfasciatus adults and, except for C. pyramidalis, they little prefered oviposition in the free-choice test. In the non-choice oviposition test, there were no eggs on beans treated with C. ambrosioides and P. nigrum powders, and consequently, there was no adult emergence.Fundação de Amparo a Pesquisa do Estado de Alagoas
O feijão, Phaseolus vulgaris (Linnaeus, 1753) (Fabaceae), é a leguminosa de maior importância como fonte de proteína vegetal no Brasil. Os danos causados pelos insetos aos grãos de feijão reduzem a qualidade, afetando a aparência, palatabilidade e aceitabilidade pelo consumidor. O caruncho Zabrotes subfasciatus (Boheman, 1833) (Coleoptera: Chrysomelidae: Bruchinae) é uma das principais pragas do feijão armazenado. As larvas desses insetos abrem galerias no grão de feijão, atacando os cotilédones e podendo destruí-los completamente. Os métodos atualmente utilizados para o controle de espécies de pragas em armazenamento são os expurgos e o tratamento com inseticidas residuais, que nem sempre são eficientes para controlar as pragas ou para evitar a reinfestação, podendo resultar em problemas de resistência dos insetos e intoxicações em animais e seres humanos. Este trabalho teve por objetivo avaliar a atividade inseticida de dez diferentes espécies vegetais para o controle de Z. subfasciatus. Foram avaliadas a mortalidade, oviposição e emergência, em teste sem chance de escolha, repelência e oviposição e emergência, em teste com chance de escolha. As plantas estudadas foram: Anadenanthera colubrina (Vell.) (angico), Annona muricata L (graviola), Azadirachta indica A. Juss. (nim), Caesalpinia pyramidalis Tul. (catingueira), Chenopodium ambrosioides L. (mastruz), Cymbopogon citratus Stapf. (capim-santo), Cymbopogon sp. (citronela), Momordica charantia L. (melão-de-são-caetano), Ricinus communis L. (mamona) e Piper nigrum L. (pimenta-do-reino). Para a avaliação da repelência, foi estabelecido um índice de repelência, e utilizado o teste t para comparação das médias. Na análise de mortalidade e oviposição em teste sem chance de escolha, foi usado o teste F e, quando necessário, as médias foram comparadas pelo teste de Tukey. Os dados de mortalidade, oviposição e emergência foram verificados e, pela análise de variância, pôde-se observar que o pó de C. ambrosioides é altamente tóxico aos insetos, assim como P. nigrum, causando a mortalidade de 100% dos insetos em apenas quatro dias de exposição. Os pós de A. muricata, A. indica, C. pyramidalis, C. ambrosioides, Cymbopogon sp., C. citratus e P. nigrum foram repelentes aos adultos de Z. subfasciatus e, com exceção de C. pyramidalis, também foram pouco preferidos para oviposição em teste com chance de escolha. Em teste de oviposição sem chance de escolha, os feijões tratados com os pós de C. ambrosioides e P. nigrum não foram ovipositados e, consequentemente, não houve emergência de adultos.
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Costa, Jacqueline Tonielo da [UNESP]. "Efeito de genótipos de feijoeiro, óleo de nim em diferentes formulações e período residual no controle de Zabrotes subfasciatus (Boheman, 1833)." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/96943.
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costa_jt_me_jabo.pdf: 379430 bytes, checksum: 04360b12527515a23f20f7cacd092a96 (MD5)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Com a finalidade de buscar meios alternativos para o controle de Zabrotes subfasciatus (Boheman, 1833) (Coleoptera: Bruchidae), este trabalho teve por objetivo, avaliar o efeito isolado e associado de diferentes doses e formulações de óleo de nim (Azadirachta indica A. Juss.) e de genótipos de feijoeiro sobre o comportamento de Z. subfasciatus e o período residual desses produtos naturais no armazenamento. O experimento foi conduzido no Laboratório de Resistência de Plantas a Insetos do Departamento de Fitossanidade da FCAV\UNESP, Jaboticabal/SP. Inicialmente, foi testado o efeito de 11 genótipos de feijoeiro (Arc 1, Arc 2, Arc 3, Arc 4, Raz 49, Raz 55, Raz 59, HF 5465, Dor 391, Dor 476 e IAPAR-MD 806) sobre a oviposição e desenvolvimento dos insetos. A seguir, foi avaliado o efeito dos produtos a base de óleo de nim na formulação nanocápsulas - CE (0,1 e 0,3%), óleo de nim em pó solúvel - NC (0,1 e 0,3%), óleo de nim NC + PS (0,3% + 0,3%), óleo de nim 1000 concentrado emulsionável - CE (0,1 e 0,3%), óleo de nim 2000 CE (0,1 e 0,3%), óleo de nim 4000 CE (0,1 e 0,3%), deltametrina 25 CE (0,05%) e a testemunha (sem controle) também sobre a oviposição e desenvolvimento de Z. subfasciatus. Com base nos resultados, foram selecionados quatro genótipos (três resistentes e um suscetível) e três produtos a base de óleo de nim (considerados os mais eficientes no controle da praga), para avaliar o efeito associado sobre a oviposição, desenvolvimento e consumo de grãos causados pelos insetos. Para finalizar foi avaliado o período residual dos tratamentos óleo de nim 1000 (CE) (0,3%), óleo de nim 2000 CE (0,3%), óleo de nim 4000 CE (0,3%), deltametrina 25 CE (0,05%) e a testemunha (sem controle) sobre a porcentagem de insetos mortos número total de ovos, número de ovos viáveis, mortalidade dos insetos na fase imatura, número de insetos emergidos e massa seca de grãos...
With the aim to seek alternative means for its control of Zabrotes subfasciatus (Boheman, 1833) (Coleoptera: Bruchidae), this study, assess the effect isolated and related of different doses and formulations of neem oil (Azadirachta indica A. Juss.) and bean genotypes on the behavior of Z. subfasciatus and the residual period of these natural products in storage. The experiment was conducted in the Laboratório de Resistência de plantas a insetos do Departamento de Fitossanidade da FCAVUNESP, Jaboticabal/SP. Initially, was tested the effect of 11 bean genotypes (Arc 1, the Arc 2, the Arc 3, the Arc 4, Raz 49, 55, Raz Raz 59, HF 5465 pain, pain 391, 476 and IAPAR-MD 806) on the oviposition and development of insects. below, was evaluated the effect of the products the base of neem oil in the formulation nanocápsulas - EC (0.1 and 0.3%), oil of neem dry powder - CN (0.1 and 0.3%), neem oil NC + PS (0.3% + 0,3%), neem oil 1000 concentrated emulsionável - EC (0.1 and 0.3%), neem oil 2000 EC (0.1 and 0.3%), neem oil 4000 EC (0.1 and 0.3%), deltamethrin 25 EC (0.05%) and the control (uncontrolled) also on the oviposition and development of Z. subfasciatus. Based on the results, were selected four genotypes (three resistant and susceptible) and three products the base of neem oil (considered the most efficient in controlling the Prague), to evaluate the effect associated on oviposition, development and consumption of grains caused by insects. To finalize was evaluated the residual period of treatments neem oil 1000 (EC) (0.3%), neem oil 2000 EC (0.3%), neem oil 4000 EC (0.3%), deltamethrin 25 EC (0.05%) and the control (without control) on the percentage of dead insects, total number of eggs, number of eggs viable, mortality of insects on immature stage, number of insects emerged and dry mass of grains consumed and determined to the percentage of efficiency by the formula of Abbott... (Complete abstract click electronic access below)
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Deboni, Tarita Cira. "Preparados homeopáticos e fitoterápicos no manejo de Acanthoscelides Obtectus Say, 1831 (Coleoptera: Bruchidae)em feijão armazenado." Universidade do Estado de Santa Catarina, 2009. http://tede.udesc.br/handle/handle/1118.
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Previous issue date: 2009-02-20The cultivation of beans in Brazil is typical of small properties, where part of the production is directed for the commercialization, and part is stored for the family consumption or used as seed. During the storage, the bean grains are subject to losses due to the attack of the bean weevil Acanthoscelides obtectus Say (Coleoptera: Bruchidae), which may cause great damages, endangering its quality, direct and indirectly. Experiments were conducted with the objective of evaluating the effect of homeopathic and phytoterapic preparations in the management of A. obtectus. Such experiments demonstrated the effectiveness of the treatments on the mortality and repellency of adults, and its effect on the emerged progeny. Bioassay with extracts of Rosmarinus officinalis, Ruta graveolens and Artemisia absinthium, and the homeopathic preparations Taraxacum, Chenopodium anthelminticum, macerated bioteraphic and triturated bioteraphic of A. obtectus were conducted in the Laboratory of Homeopathy and Vegetable Health. 3 mL of the treatment for 100 g of bean were used, while for the bioassay with whole green leaves, milled green, whole dry and milled dry leaves of R. officinalis, R. graveolens and A. absinthium, 0,3 g for 10 g of bean were used. The mortality bioassay was conducted in a completely randomized design, with the phytoterapic treatments, for which 20 g of treated bean were placed in a plate of Petri, where 20 adults of A. obtectus were introduced with up to 24 hours. The evaluations consisted of the counting and retreat of the dead insects for 10 days. The analyzed plates were closed and stored until they completed 45 days, the date when the number of emerged insects was counted. The treatments with the leaves of R. graveolens and A. absinthium presented effect on the mortality of adults, while the treatments with the alcoholic extracts of the three species and the leaves of R. officinalis did not cause mortality of adults, and none of the treatments affected the emerged progeny significantly. The repellency bioassay was conducted in a completely randomized blocks design, in boxes of multiple choice, in which portions were distributed with treated bean in circular form, in which 200 adults of A. obtectus were liberated with age up to 24 hours. The counting of the present insects in each treatment began after 12 hours of the assembly, extending for 10 consecutive days. After this period, the insects were removed, and the plates were closed and stored for 35 days, to accomplish the counting of the emerged progeny. The mill leaves of R. officinalis and green leaves of A. absinthium repelled the adults of the bean weevil and they caused reduction of the number of emerged insects. The homeopathic preparations, as well as the alcoholic extracts did not repel the adults of the bean weevil, even so they reduced the progeny of this insect. The leaves of R. graveolens did not repel the bean weevil nor affected the progeny. Depending on the way of preparing and using, the homeopathic and phytoterapic preparations, when mixed to the bean grains, are capable of affecting the behavior of A. obtectus
O cultivo do feijoeiro no Brasil é típico de pequena propriedade, onde parte da produção é destinada à comercialização,e parte é armazenada para o consumo familiar ou utilização como semente. Durante o armazenamento, os grãos de feijão estão sujeitos a perdas devido ao ataque do caruncho Acanthoscelides obtectus Say (Coleoptera: Bruchidae), que pode causar grandes prejuízos, comprometendo a sua qualidade, direta e indiretamente. Com o objetivo de avaliar o efeito de preparados homeopáticos e fitoterápicos no manejo de A. obtectus, foram conduzidos experimentos nos quais se observou a efetividade dos tratamentos sobre a mortalidade e repelência de adultos, e seu efeito sobre a progênie emergida. Bioensaios com extratos de Rosmarinus officinalis, Ruta graveolens e Artemisia absinthium e os preparados homeopáticos Taraxacum, Chenopodium anthelminticum, nosódio macerado e nosódio triturado de A. obtectus foram conduzidos no Laboratório de Homeopatia e Saúde Vegetal. Utilizaram-se 3 mL do tratamento para 100 g de feijão, enquanto que para os bioensaios com folhas verdes inteiras, verdes moídas, secas inteiras e secas moídas de R. officinalis, R. graveolens e A. absinthium, foram utilizados 0,3 g para 10 g de feijão. O bioensaio de mortalidade foi conduzido em delineamento inteiramente casualizado, com os tratamentos fitoterápicos, para os quais foram colocados 20 g de feijão tratado em uma placa de Petri, onde foram introduzidos 20 adultos de A. obtectus com até 24 horas. As avaliações constaram da contagem e retirada dos insetos mortos durante 10 dias. As placas avaliadas foram vedadas e armazenadas até completarem 45 dias, data na qual foi contado o número de insetos emergidos. Apresentaram efeito sobre a mortalidade de adultos os tratamentos com as folhas de R. graveolens e A. absinthium, enquanto que os tratamentos com os extratos alcoólicos das três espécies e as folhas de R. officinalis não causaram mortalidade de adultos, sendo que nenhum dos tratamentos afetou significativamente a progênie emergida. O bioensaio de repelência foi conduzido em blocos casualizados, em caixas de múltipla escolha, nas quais foram distribuídas parcelas com feijão tratado em forma circular, na qual foram liberados 200 adultos de A. obtectus com idade até 24 horas. A contagem dos insetos presentes em cada tratamento se iniciou após 12 horas da montagem, estendendo-se por 10 dias consecutivos. Após este período, os insetos foram retirados, e as placas foram vedadas e armazenadas por 35 dias para realizar a contagem da progênie emergida. As folhas moídas de R. officinalis e verdes de A. absinthium repeliram os adultos do caruncho e causaram redução do número de insetos emergidos. Os preparados homeopáticos, bem como os extratos alcoólicos não repeliram os adultos do caruncho, porém reduziram a progênie deste inseto. As folhas de R. graveolens não repeliram o caruncho nem afetaram a progênie. Dependente da forma de preparo e utilização, os tratamentos homeopáticos e fitoterápicos, quando misturados aos grãos de feijão, são capazes de afetar o comportamento de A. obtectus
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ALVES, Sérgio Monteze. "Toxidade e repelência de óleos essenciais no manejo de Zabrotes subfasciatus (Boh.) (Coleoptera: Chrysomelidae, Bruchinae) em grãos de Phaseolus vulgaris L." Universidade Federal Rural de Pernambuco, 2012. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6028.
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Sergio Monteze Alves.pdf: 300642 bytes, checksum: fce1237abc75b8072be0d5a98b316b58 (MD5)Made available in DSpace on 2016-11-29T16:49:22Z (GMT). No. of bitstreams: 1 Sergio Monteze Alves.pdf: 300642 bytes, checksum: fce1237abc75b8072be0d5a98b316b58 (MD5) Previous issue date: 2012-02-01
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
The bean species, Phaseolus vulgaris (L.), stands out as the most important of the five cultivated in the world. Among the pests of stored beans in Brazil, Zabrotes subfasciatus (Boh.) is considered the major one, whose control is commonly carried out using synthetic protectors and fumigants. New approaches to control have been tested, using less toxic compounds, less expensive, accessible and appropriate to the principles of Integrated Pest Management (IPM). The aims of this study were: (i) toxicity test (contact and fumigation) and repellence of dos Eucaliptus staigeriana F. Muell, Eucaliptus citriodora Hook, Ocimum gratissimum (L.) and Foeniculum vulgare Mill essential oils; (ii) identify and quantify the constituting compounds. The analysis by GC/ME indicated the presence of Limonene (28.73%), Geranial (15.20%) and Neral (12.16%), as main constituents of E. staigeriana oil; and for E. citriodora oil, Citronellyl acetate (3.34%), 1,8-Cineole (2.87%) and β-Pineno (0.94%). Among the oils tested at fumigant action, the most effective in controlling Z. subfasciatus were: O. gratissimum (LC50 = 0.9 μL/L air) and E. citriodora (LC50 = 0.9 μL/L air). In contact tests the highlights were: E. staigeriana (LC50 = 2.73 μL/20g) and F. vulgare (LC50 = 2.74 μL/20g). E. citriodora resented repellent effect from the concentration of 7.6 μl/20g of beans seeds, followed by E. staigeriana 8.0 μl/20g. The oviposition reduction of Z. subfasciatus was 96.2%, 96.4% and 57.2%, respectively, for E. staigeriana, E. citriodora and F. vulgare oils. Similar results were found to adult emergence.
A espécie de feijão comum, Phaseolus vulgaris (L.), destaca-se como a mais importante, entre as cinco cultivadas no mundo. Dentre as pragas do feijão armazenado no Brasil, Zabrotes subfasciatus (Boh.) é considerada uma das mais significativas, sendo seu controle comumente realizado com inseticidas sintéticos protetores e fumigantes. No entanto, novas alternativas aos inseticidas sintéticos vêm sendo testadas, como os produtos naturais, que são menos tóxicos, de menor custo, biodegradáveis e adequados aos princípios do Manejo Integrado de Pragas (MIP). Os objetivos desse trabalho foram: (i) testar a toxicidade (contato e fumigação) e a repelência dos óleos essenciais de Eucaliptus staigeriana F. Muell, Eucaliptus citriodora Hook, Ocimum gratissimum (L.) e Foeniculum vulgare Mill em Z. subfasciatus; (ii) identificar e quantificar os compostos constituintes. A análise por CG/EM revelou a presença de Limoneno (28,73%), Geranial (15,20%) e Neral (12,16%), como constituintes majoritários do óleo de E. staigeriana; e para E. citriodora, Citronelil acetato (3,34%), 1,8-Cineole (2,87%) e β-Pineno (0,94%). Os óleos mais efetivos com efeito fumigante no controle de Z. subfasciatus foram O. gratissimum e E. citriodora com CL50s de 0,9 μL/L de ar. Nos testes de contato se destacaram E. staigeriana (CL50 = 2,73 μL/20g) e F. vulgare (CL50 = 2,74 μL/20g). E. citriodora apresentou efeito repelente para adultos de Z. subfasciatus, a partir de 7,6 μl/20g de feijão, seguido por E. staigeriana à 8,0 μl/20g. A redução da postura de Z. subfasciatus foi de 96,2, 96,4 e 57,2%, respectivamente, para os óleos de E. staigeriana, E. citriodora e F. vulgare. Resultados semelhantes, também, foram encontrados para a emergência de adultos.
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SILVA, Cleia Gomes Vieira e. "Bioatividade de extratos etanólicos de Croton sobre Plutella xylostella (L) e ação fumigante e composição química de óleos essenciais de Croton grevioides (Baill.) sobre Zabrotes subfasciatus (Boheman)." Universidade Federal Rural de Pernambuco, 2007. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/5963.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
Plants constitute natural sources of insecticide substances and have been used by mankind since Antiquity. It is also known that medicinal plants present great quantities of secondary compounds such as alkaloids, terpens, flavonoids and steroids which promote high resistance to the onset of pests and diseases. The genus Croton, which is made up of species that occur naturally in the State of Pernambuco, where many of them are used in the popular medicine and characterize themselves by the production of essential oil, owns expressive relevance founded on their sources of fixed and volatile components with recognized biological activity in the treatment of various illnesses. The knowledge that medicinal plants present high resistance to the onset of diseases and pests has led us to investigate the potential insecticide of crude ethanolic extracts from different parts of plants of the genus Croton against Plutella xylostella L. and of the essential oil of the species C. grewioides against Zabrotes subfasciatus Boheman. All the investigated plants are native to the biome in Pernambuco with use in the popular medicine by the community where its occurrence is reported. The crude extracts were obtained through cold maceration, ethanol being used as solvent, from leaves and stalks of the species Croton jacobinensis Baill, C. micans Muell., C. rhamnifolius H.B.K and C. sellowii Baill. The essential oil, on the other hand, was obtainedthrough hydro-distillation from the leaves and stalk of C. grewioides. These extracts were diluted into previously determined concentrations by means of a pilot experiment and their activities were tested for the development and survival of Plutella xylostella L. To do so, with the aid of Potter’s Tower, eight-cm diameter cabbage disks, Brassica oleracea var. acephala L., were ground with different concentrations of the ethanolic extracts and offered to caterpillars confined into Petri’s dishes. Among the studied extracts, the ethanolic extract from leaves of C. rhamnifolium was the most toxic at the larval phase, followed by the ethanolic extract from the stalk of the same species, presenting CL50 of 14.95 and 42.40μg mL-1, respectively. The interference of the extract of C. rhamnifolius in the development of P. xylostella was also noticed. From the stalk and leaves of Croton grewioides Baill essential oils were extracted through hydro-distillation and then analyzed by GC/MS. This analysis revealed that both oils are made up of 22 compounds, in which the predominant chemical class was that of the phenylpropanoids, whose major representative was (E)-anetol (65.5% in the leaves and 47.8% in the stalk). The fumigant effect of both essential oils was assessed for the woodworm of beans, Z. subfasciatus, which presented itself as potential for the control of this pest. The essential oil of leaves presented itself about 3.4 times more effectivethan the essential oil from the stalk and the estimated values for the CL50 were 4.0 and 13.7 μg mL-1 of air, respectively.
As plantas constituem fontes naturais de substâncias inseticidas, e vêm sendo utilizadas pela humanidade desde a antiguidade. As plantas medicinais apresentam grandes quantidades de compostos secundários como alcalóides, terpenos, flavonóides e esteróides, que promovem alta resistência ao ataque de pragas e de doenças. O gênero Croton, que é constituído por espécies que ocorrem naturalmente no estado de Pernambuco, onde muitas delas são utilizadas na medicina popular. Estas plantas se caracterizam pela produção de óleo essencial e detém expressiva relevância alicerçada em suas fontes de componentes fixos e voláteis com reconhecida atividade biológica no tratamento de várias enfermidades. O conhecimento de que plantas medicinais apresentam alta resistência ao ataque de doenças e pragas motivou a investigação do potencial inseticida de extratos etanólicos brutos de diferentes partes de plantas do gênero Croton no controle de Plutella xylostella L. e do efeito fumigante de óleo s essenciais da espécie C. grewioides contra Zabrotes subfasciatus Boheman. Todas as plantas investigadas são nativas do bioma pernambucano com uso na medicina popular pela comunidade onde sua ocorrência é registrada. Os extratos brutos foram obtidos por maceração a frio, utilizando como solvente o etanol, a partir de folhas e caules das espécies Croton jacobinensis Baill, C. micans Muell., C.rhamnifolius H.B.K. e C. sellowii Baill. Já o óleo essencial foi obtido por hidrodestilação a partir de folhas e caule de C. grewioides. Os extratos obtidos foram diluídos em concentrações previamente determinadas mediante experimento piloto e tiveram suas atividades testadas sobre o desenvolvimento e sobrevivência de Plutella xylostella L. Para isto, com auxílio de torre de Potter, discos de oito cm de diâmetro de folhas de couve, Brassica oleracea var. acephala L., foram pulverizados com diferentes concentrações dos extratos etanólicos, e oferecidos às larvas confinadas em placas de Petri. Dentre os extratos estudados, o extrato etanólico de folhas de C. rhamnifolium foi o mais tóxico à fase larval, seguido do extrato etanólico de caule da mesma espécie, apresentando CL50 de 14,95 e 42,40μg mL-1, respectivamente. Observou-se ainda uma interferência do extrato de C. rhamnifolius no desenvolvimento de P. xylostella. O óleo essencial obtido a partir do caule e folhas de Croton grewioides Baill. foi analisado por CG/EM. Um total de 22 compostos foi identificado. A classe química predominante foi fenilpropanóide, cujo representante majoritário, o (E)-anetol apresentou percentual de 65,5% no óleo de folha, e 47,8% no óleo do caule. Bioensaio de fumigação foi realizado contra o caruncho do feijão Z. subfasciatus. O óleo essencial de folhas foi cerca de 3,4 vezes mais tóxico eficaz do que o óleo essencial do caule cujos valores estimados para a CL50 foram 4,0 e 13,7 μgL-1 de ar, respectivamente.
Books on the topic "Bean weevil"
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Vittum, Patricia J. Turfgrass Insects of the United States and Canada. Cornell University Press, 2020. http://dx.doi.org/10.7591/cornell/9781501747953.001.0001.
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The first edition of this reference work became known as the bible of turfgrass entomology upon publication in 1987. It has proved invaluable to professional entomologists, commercial turf managers, and golf course superintendents and has been used widely in college extension courses. This classic of the field is now in its third edition, providing up-to-date and complete coverage of turfgrass pests in the continental United States, Hawaii, and southern Canada. This revised volume integrates all relevant research from the previous two decades. It provides expanded coverage of several pest species, including the annual bluegrass weevil, invasive crane fly species, chinch bugs, billbugs, mole crickets, and white grubs. The book also provides detailed information on the biology and ecology of all major pests and includes the most current information on conditions that favor insect development and biological control strategies pertinent to each species. The reader should be able to identify most turf insects through the use of this text. It is a critical reference work that any serious turf professional should own.
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Hangay, George, and Paul Zborowski. Guide to the Beetles of Australia. CSIRO Publishing, 2010. http://dx.doi.org/10.1071/9780643100121.
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A Guide to the Beetles of Australia provides a comprehensive introduction to the Coleoptera – a huge and diverse group of insects. Beetles make up 40 per cent of all insects known to science. The number of described beetle species in the world – around 350 000 – is more than six times the number of all vertebrate species.
New beetle species are being discovered all the time. Of the 30 000 species that may occur in Australia, only 20 000 have been scientifically described. These include around 6500 weevils (Curculionidae), 2600 scarabs, dung beetles and chafers (Scarabaeidae); and 2250 leaf beetles (Chrysomelidae).
A Guide to the Beetles of Australia highlights the enormous diversity of this unique insect Order. It emphasises the environmental role of beetles, their relationships with other plants and animals, and their importance to humans.
Winner of the 2010 Whitley Medal.
Book chapters on the topic "Bean weevil"
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Taper, Mark L. "Experimental Character Displacement in the Adzuki Bean Weevil, Callosobruchus Chinensis." In Bruchids and Legumes: Economics, Ecology and Coevolution, 289–301. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-2005-7_29.
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Fujii, Koichi, and Khin Mar Wai. "Sex-Ratio Determination in Three Wasp Species Ectoparasitic on Bean Weevil Larvae." In Bruchids and Legumes: Economics, Ecology and Coevolution, 331–40. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-2005-7_32.
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Shinoda, Kazutaka, and Toshiharu Yoshida. "Life History of the Azuki Bean Weevil, Callosobruchus chinensis L., (Coleoptera: Bruchidae), in the Field." In Bruchids and Legumes: Economics, Ecology and Coevolution, 149–59. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-2005-7_17.
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Royama, T. "Density effects on the dynamics of a single-species population: Utida’s experiments on the azuki bean weevil." In Analytical Population Dynamics, 237–65. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2916-9_7.
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Royama, T. "Simulation of Professor Utida’s Classic Experiment on an Interaction Between the Azuki Bean Weevil and its Parasitic Wasp." In Bruchids and Legumes: Economics, Ecology and Coevolution, 385–94. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-2005-7_37.
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Gratwick, Marion. "Pea, bean and clover weevils." In Crop Pests in the UK, 190–92. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-1490-5_38.
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Ortega, Jacobo Enrique Cruz, Leopoldo Partida Ruvalcaba, Raymundo Medina López, Tomás Díaz Valdés, Teresa de Jesús Velázquez Alcaraz, and Felipe Ayala Tafoya. "Biorational Insecticides and Diatomaceous Earth for Control Sustainability of Pest in Chickpea and Mexican Bean Weevil." In Insecticides - Agriculture and Toxicology. InTech, 2018. http://dx.doi.org/10.5772/intechopen.71534.
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Vittum, Patricia J. "Coleopteran Pests: Family Curculionidae." In Turfgrass Insects of the United States and Canada, 267–98. Cornell University Press, 2020. http://dx.doi.org/10.7591/cornell/9781501747953.003.0018.
Full textAbstract:
This chapter addresses several species of billbugs and weevils which damage turfgrass in North America. These insects have historically been classified in the family Curculionidae. At least 11 species of billbugs attack managed turfgrass in North America, including the bluegrass billbug; the lesser billbug; S. venatus (Say); S. inaequalis (Say); the hunting billbug; the Phoenix (or Phoenician) billbug; the Rocky Mountain (formerly Denver) billbug; S. coesifrons Gyllenhal; and S. apicalis (LeConte). The bluegrass billbug and hunting billbug are the most widely recognized and serious billbug pests on turfgrass. The chapter also looks at the annual bluegrass weevil, which is a pest exclusively of golf course fairways, tees, greens and collars, and of tennis court turf.
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"John Weever, Jonson as humorist, 1601." In Ben Jonson, 55–56. Routledge, 2012. http://dx.doi.org/10.4324/9780203194515-11.
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"John Weever, Marston and Jonson, 1599." In Ben Jonson, 45–46. Routledge, 2012. http://dx.doi.org/10.4324/9780203194515-8.
Full textConference papers on the topic "Bean weevil"
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Брадовская, Наталья, Виктор Брадовский, and Мария Мардарь. "Перспективы разведения и применения Triaspis thoracicus Cur. В контроли численности гороховой зерновки (Bruchus pisorum L.)." In International Scientific Symposium "Plant Protection – Achievements and Prospects". Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2020. http://dx.doi.org/10.53040/9789975347204.28.
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In this article, the problems of the possibility to use the bean weevil as alternative host for laboratory rearing of Triaspis-effective parasite of pea weevil, the most dangerous pest of pea, are elucidated, as well as the data of studying of some bioecologic peculiarities of this parasite.
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Allison, Love Nma. "Effects ofair plant (Bryophyllum pinnatum) on bean weevil (Acanthoscelides obectus)." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.110259.
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"Dielectric properties of bean weevil, grain moth and their hosts (common bean and amaranth) using the resonant cavity technique." In 2015 ASABE International Meeting. American Society of Agricultural and Biological Engineers, 2015. http://dx.doi.org/10.13031/aim.20152188775.
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Suárez-Villanueva, V., Á. Rodríguez-González, F. Da Silva, S. Mayo, G. Carro-Huerga, Ó. González-López, S. Álvarez-García, and PA Casquero. "Small concentrations of Lippia spp. can help in the control of the bean weevil, Acanthoscelides obtectus Say." In GA 2017 – Book of Abstracts. Georg Thieme Verlag KG, 2017. http://dx.doi.org/10.1055/s-0037-1608458.
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Hastuti, Arum Dwi, and Ignatius Sudaryadi. "The effect of gamma Co-60 radiation on the mung bean weevil (Callosobruchus maculatus Fab.) and the quality of mung bean seed (Phaseolus radiatus L.)." In THE 6TH INTERNATIONAL CONFERENCE ON BIOLOGICAL SCIENCE ICBS 2019: “Biodiversity as a Cornerstone for Embracing Future Humanity”. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0015855.
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