Relevant bibliographies by topics / Diadegma semiclausum

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Academic literature on the topic 'Diadegma semiclausum'

Author: Grafiati
Published: 4 June 2021
Last updated: 28 January 2023

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Journal articles on the topic "Diadegma semiclausum"

1

KUMARAWATI, NI PUTU NIA, I. WAYAN SUPARTHA, and KETUT AYU YULIADHI. "Parameter Biologi dan Demografi Parasitoid Diadegma semiclausum Hellen (Hymenoptera : Ichneumonidae) pada Plutella xylostella L. (Lepidoptera : Plutellidae)." Agrotrop : Journal on Agriculture Science 8, no. 2 (2019): 156. http://dx.doi.org/10.24843/ajoas.2018.v08.i02.p06.

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Biological and Demographic Parameters of Parasitoid Diadegma semiclausum Hellen (Hymenoptera: Ichneumonidae) on Plutella xylostella L. (Lepidoptera: Plutellidae). Diadegma semiclausum Hellen (Hymenoptera: Ichneumonidae) is one of the parasitoid larvae which attacks Plutella xylostella (Lepidoptera: Plutellidae) effectively. This research was aimed to know the biology of parasitoid D. semiclausum in broccoli. The research was carried out in a laboratory by observing the development of parasitoid, fecundity, longevity the males and females as well as parameters demographic of D. semiclausum. The results showed that immature development time of D. semiclausum parasitoid from egg up to adult the imago was 10.65 ± 0.63 days, with the number of fecundity was 22.9 grains. Longevity of male imago of D. semiclausum was 12.10 ± 0.74 days and imago of females 9.80 ± 1.87 days. Parameters demographic of D. semiclausum showed that net reproduction rate (R0) was 22.11 per generation, intrinsic growth rate (r) was 0.18 per day, limited increased rate (?) was 1.16 individuals per day, generation time (T) was 17.50 day.
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2

Khatri, D., X. Z. He, and Q. Wang. "Mating behaviour and egg maturation in Diadegma semiclausum Hellen (Hymenoptera Ichneumonidae)." New Zealand Plant Protection 62 (August 1, 2009): 174–78. http://dx.doi.org/10.30843/nzpp.2009.62.4774.

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Diadegma semiclausum is an important larval parasitoid of diamondback moth Plutella xylostella Little was known about the reproductive biology of this parasitoid The present study investigated mating behaviour and egg maturation dynamics of D semiclausum in the laboratory at 211C 168 h (lightdark) and 5060 RH Both males and females became sexually mature
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3

Hasibuan, Rosma, Nilly Christalia, F. X. Susilo, and Nur Yasin. "POTENTIAL IMPACT OF METARHIZIUM ANISOPLIAE ON THE DIAMONDBACK MOTH (LEPIDOPTERA: PLUTELLIDAE) AND ITS PARASITOID DIADEGMA SEMICLAUSUM (HYMENOPTERA: ICHNEUMONIDAE)." Jurnal Hama dan Penyakit Tumbuhan Tropika 9, no. 2 (2009): 99–108. http://dx.doi.org/10.23960/j.hptt.2999-108.

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Potential Impact of Metarhizium anisopliae on the Diamondback Moth (Lepidoptera: Plutellidae) and Its Parasitoid Diadegma semiclausum (Hymenoptera: Ichneumonidae). Laboratory studies were conducted to evaluate the effect of the Metarhizium anisopliae against the diamondback moth, Plutella xylostella and its parasitoid, Diadegma semiclausum. A completely randomized design consisted of 5 treatments (4 concentrations of conidial suspension: 5 x 104, 3.5 x 105, 2.5 x 106, 1.2 x 107 conidia/ml and control) was used. The results indicated that the mortality of P. xylostella larvae were significantly induced by the fungal treatments. A significant reduction in pupation and adult emergence of P. xylostella was also detected in all treatments when compared with that in the control. The fungus might also result in a male-biased sex ratio of the surviving P. xylostella. When applied at a concentration of 1.2 x 107 conidia/ml, M. anisopliae might significantly reduce the survival of the parasitoid, D. semiclausum. Thus, despite its potential as a biological control agent against P. xylostella, the entomomogenous fungus M. anisopliae was also detrimental to the larvae parasitoid D. semiclausum.
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4

Puu, Yustina Maria Silvia Wonga. "EKSPLORASI DAN IDENTIFIKASI PARASITOID HAMA Plutella xylostella PADA TANAMAN KUBIS Brassica oleracea." AGRICA 7, no. 2 (2020): 111–21. http://dx.doi.org/10.37478/agr.v7i2.409.

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This study aims at exploring and identifying parasitoid Plutella xylostella pest on cabbage plants Brassica oleracea in Nduaria Village and finding out the most dominant parasitoid associated with Plutella xylostella pest. Observation variables used included identification of parasitoid species being parasitic in each stage of Plutella xylostella pest life found in the field, parasitoid species abundance and domination of parasitoid. The result of exploration in three sub-villages of NduariaVillage indicated that there were three species of the parasitoid, namely eggof parasitoid Trichogrammatoidae cojuangcoi, the larva of parasitoid Diadegma semiclausum and Cotesia Plutellae. The dominant parasitoid is Diadegma semiclausumwith the value of 0,11. The most abundance in parasitoid larva Diadegma semiclausum is 5,7%. Damage intensity caused by Plutella xylostella was categorized as medium damage intensity of>25-?50%, and this kept rising along with the age of larva and population as well as supporting environment condition due to Plutella xylostella resistance to the pesticide.
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5

Maulina, Fri. "KAIROMON SEBAGAI PEMANDU KEDATANGAN PARASITOID DIADEGMA SEMICLAUSUM HELLEN PADA LARVA INANG." Journal of Food Crop and Applied Agriculture 1, no. 2 (2021): 63–67. http://dx.doi.org/10.32530/jfcaa.v1i2.389.

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Kairomon merupakan suatu zat kimia yang dikeluarkan oleh suatu spesies untuk menarik spesies yang berbeda seperti larva hama terhadap parasitoid. Sumber potensial kairomon bisa diperoleh dari kotoran, kelenjar ludah, sutera, kontaminasi tubuh, sekresi makan, dan sekresi pertahanan dari inang. Tujuan penelitian ini adalah untuk mengetahui keberadaan kairomon pada kotoran larva inang (larva P. xylostella) dan pengenceran terbaik dalam mengundang kedatangan parasitoid D. semiclausum. Pengujian kairomon menggunakan Rancangan Acak Lengkap (RAL), terdiri dari 4 perlakuan dan 7 ulangan. Perlakuan yaitu pengenceran kotoran inang pada 10-1, 10-2, (tanpa pengenceran = 100) dan kontrol. Hasil pengujian membuktikan bahwa kotoran larva Plutella xylostella dapat memandu kedatangan parasitoid D. semiclausum dengan indikator jumlah telur yang diletakkan pada pengenceran kotoran larva 10-1 dan 10-2 dan tingkat parasitisasi pada pengenceran kotoran larva 10-1 dan 10-0. Kotoran larva P. xylostella berperan sebagai kairomon bagi parasitoid D. semiclausum.
 
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6

Azidah, A. A., M. G. Fitton, and D. L. J. Quicke. "Identification of the Diadegma species (Hymenoptera: Ichneumonidae, Campopleginae) attacking the diamondback moth, Plutella xylostella (Lepidoptera: Plutellidae)." Bulletin of Entomological Research 90, no. 5 (2000): 375–89. http://dx.doi.org/10.1017/s0007485300000511.

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AbstractThe species of Diadegma that attack Plutella xylostella(Linnaeus) are revised. Following a morphometric study involving principal components and discriminant analyses, seven distinct morphospecies are recognized. One species is described as new: D. novaezealandiae from New Zealand. Diadegma mollipla(Holmgren) is the name for the species from sub-Saharan Africa and some Indian Ocean and South Atlantic islands. Diadegma varuna Gupta syn. nov. and D. niponicaKusigemati syn. nov. are both synonymized with D. fenestrale(Holmgren). Diadegma xylostellae Kusigemati is strongly presumed to be a synonym of D. semiclausum (Hellén). An illustrated identification key is provided and each species is described in a standard way.
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7

Khatri, D., X. Z. He, and Q. Wang. "Reproductive fitness of Diadegma semiclausum Hellen (Hymenoptera Ichneumonidae) in response to host density." New Zealand Plant Protection 65 (January 8, 2012): 142–47. http://dx.doi.org/10.30843/nzpp.2012.65.5384.

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Diadegma semiclausum is an important larval parasitoid of diamondback moth (DBM) Plutella xylostella The present study investigated the reproductive fitness of D semiclausum females in response to host densities of 5 and 30 DBM larvae per cabbage seedling per day Both the number of hosts parasitised and the number of female progeny produced over the life of the parasitoid were significantly greater in the 30 than the 5 host density (hosts parasitised 60131 versus 12015 and female progeny produced 6710 versus 122) (P
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8

Istiaji, Bonjok, Djoko Prijono, and Damayanti Buchori. "Keberhasilan hidup parasitoid Diadegma semiclausum Hellen dan serangga inangnya Plutella xylostella (L.) terhadap aplikasi ekstrak biji srikaya (Annona squamosa L.)." Jurnal Entomologi Indonesia 15, no. 1 (2018): 10. http://dx.doi.org/10.5994/jei.15.1.10.

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Pengendalian Plutella xylostella L. dapat dilakukan baik secara hayati maupun kimiawi. Pengendalian secara hayati umumnya banyak dilakukan dengan cara memanfaatkan ekstrak tanaman untuk membunuh serangga hama. Penelitian ini bertujuan mengetahui pengaruh ekstrak biji srikaya terhadap kematian dan perkembangan parasitoid Diadegma semiclausum Hellen serta inangnya, P. xylostella. Pengaruh ekstrak biji srikaya terhadap larva P. xylostella instar III awal diuji dengan metode residu pada daun dan metode residu pada permukaan gelas untuk menguji pengaruh kontak ekstrak biji srikaya terhadap kematian imago D. semiclausum. Pengaruh ekstrak biji srikaya terhadap parasitisasi dan perkembangan D. semiclausum pradewasa dilakukan dengan memaparkan larva P. xylostella yang telah terkontaminasi ekstrak biji srikaya pada konsentrasi subletal (LC5 dan LC10) pada imago D. semiclausum. Hasil penelitian menunjukkan ekstrak biji srikaya pada konsentrasi 0,0632–0,1% pada kontaminasi 24 jam berpengaruh terhadap kematian larva P. xylostella dan imago parasitoid D. semiclausum. Imago parasitoid lebih peka terhadap peningkatan konsentrasi ekstrak biji srikaya dibandingkan dengan larva P. xylostella. Hambatan perkembangan P. xylostella oleh ekstrak biji srikaya pada konsentrasi yang digunakan umumnya tidak nyata. Demikian pula, hambatannya terhadap perkembangan parasitoid D. semiclausum dalam inang yang terkontaminasi konsentrasi subletal (LC5 dan LC10) ekstrak biji srikaya umumnya tidak berbeda nyata. Keberadaan ekstrak biji srikaya dalam inang juga tidak berpengaruh nyata terhadap tingkat parasitisasi, panjang kokon, lebar kokon, dan bobot kokon. Oleh karena itu, terdapat peluang memadukan pengendalian P. xylostella secara kimiawi dan hayati.
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9

Khatri, D., Q. Wang, and X. Z. He. "Development and reproduction of Diadegma semiclausum (Hymenoptera Ichneumonidae) on diamondback moth Plutella xylostella (Lepidotera Plutellidae)." New Zealand Plant Protection 61 (August 1, 2008): 322–27. http://dx.doi.org/10.30843/nzpp.2008.61.6810.

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This study investigated the development emergence and mating of Diadegma semiclausum Hellen an important parasitoid of diamondback moth in the laboratory at 21 1C and 5060 RH with a photoperiod of 1212 h (lightdark) The parasitoids developmental period was significantly shorter and pupal weight significantly higher if their mothers parasitised the fourth instar larvae of DBM (P
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10

Rossbach, A., B. Löhr, and S. Vidal. "Interspecific competition between Diadegma semiclausum Hellen and Diadegma mollipla (Holmgren), parasitoids of the diamondback moth, Plutella xylostella (L), feeding on a new host plant." Bulletin of Entomological Research 98, no. 2 (2007): 135–43. http://dx.doi.org/10.1017/s0007485307005482.

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AbstractInterspecific competition between an introduced parasitoid species aimed at controlling a herbivorous pest species and a native parasitoid parasitising the same host may influence the success of classical biological control programmes. In Kenya, interspecific competition between an introduced and a local parasitoid on two diamondback moth populations (DBM, Plutella xylostella) was investigated on two different host plants. We tested simultaneous and delayed competition of the local parasitoid Diadegma mollipla Holmgren and its exotic congenus D. semiclausum Hellen on a newly aquired DBM host plant (snowpea) in the laboratory. Under simultaneous competition, D. mollipla produced more progeny than D. semiclausum on snowpea. A head start of D. Mollipla, of four and eight hours before its congenus was introduced, resulted in a similar number of progeny of both species. In delayed competition (time intervals of 24 h, 48 h and 72 h), progeny production was similar for both parasitoids when the time interval was 24 h, irrespective of which species parasitized first. More progeny was produced by the species which attacked first, when the time interval was greater than 24 h, although it was only significant at 72 h. Competitive abilites of both parasitoids on the new host plant differed largely between laboratory and semi-field conditions. The influence of two host plants (snowpea and cabbage) on competition was studied in the greenhouse with different host and parasitoid densities. Parasitism levels of D. semiclausum were significantly higher than those of D. mollipla, regardless of host plant, host and parasitoid densities, but progeny production of D. mollipla on snowpea was still slightly higher than on cabbage. As compared to the confinement of parasitoids and larvae to small containers, D. mollipla parasitized very few larvae in the cages. Competitive ability of the two parasitoid species tested was influenced both by the density of the searching females and by parameters related to either the host plant and/or the herbivorous hosts.
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