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Showing 1 to 20 of 20 for “"Helicoverpa armigera"”.
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Inactivation of Helicoverpa armigera nucleopolyhedrovirus on chickpea, Cicer arietinum L.
Insect specific viruses like nucleopolyhedrosisvirus (NPV) can provide an alternative and effective insect pest control compared to conventional chemicals; however, on certain crops like chickpea efficacy of the virus is limited. Previous studies have demonstrated that inactivation on chickpea was …
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A Helicoverpa armigera csapdázására használt különböző illatanyagok és diszpenzerek hatékonyságának vizsgálata
A gyapottok-bagolylepke (Helicoverpa armigera) hazánkban egy jó ideig, mint vándorlepke volt csak ismert, miután a mediterrán területekről időszakosan betört hazánkba. Első jelentősebb megjelenése a ’90-es évek elején, 1993-1994-ben történt. A lepkefaj következő nagy rajzása ezután 2003-ban volt, …
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Patogenisitas isolat lokal jamur Metarhizium anisopliae (Metsch) terhadap Helicoverpa armigera hubner
INDONESIA: Larva Helicoverpa armigera merupakan hama yang bersifat polifagus. Hama ini menyerang lebih dari 60 spesies tanaman budidaya dan tanaman liar. Tanaman yang menjadi inangnya antara lain tembakau, jagung, sorgum, kapas, rami, kentang,jarak, kacang-kacangan, sayuran dan tanaman hias. …
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Evaluasi ketahanan beberapa galur kapas (Gossypium hirsutum L.) terhadap penggerek buah (Helicoverpa armigera Hbn.)
… galur kapas terhadap hama penggerek buah H. armigera (Hubner), dan untuk mengetahui pengaruh beberapa galur kapas terhadap beberapa aspek biologi H. armigera (Hubner) sebagai indikator ketahanan. Penelitian dilaksanakan di laboratorium hama Balai Penelitian Tanaman Tembakau dan Serat …
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A pan-genomics approach linking genotype and phenotype in the mega-pest, Helicoverpa armigera
The Cotton Bollworm (Helicoverpa armigera) is a globally distributed polyphagous pest with a profound economic and environmental impact. Human intervention has left a distinct imprint on the genetic and phenotypic landscape of this organism from decades of attempts to control it, initially with …
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A pan-genomics approach linking genotype and phenotype in the mega-pest, Helicoverpa armigera
The Cotton Bollworm (Helicoverpa armigera) is a globally distributed polyphagous pest with a profound economic and environmental impact. Human intervention has left a distinct imprint on the genetic and phenotypic landscape of this organism from decades of attempts to control it, initially with …
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The olfactory basis for attraction of the Bollworm helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae) to host-plant flowers
… in host plant location by the polyphagous moth, Helicoverpa armigera. Volatiles collected from flowers of African marigold, Tagetes erecta, and sweet pea, Lathyrus odouratus, were found to elicit electroantennographic (EAG) responses from the antennae of female H. armigera. Compounds active in …
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Impact of host plants on the efficacy of nucleopolyhedrovirus as a biopesticide against insect pest Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae)
… cotton, Gossypium hirsutum, on the efficacy of Helicoverpa armigera nucleopolyhedrovirus (HearNPV). The results showed that HearNPV was inactivated within one hour when sprayed on to the leaf surface of chickpea indicating that leaf surface factors on this plant were responsible for the effect. …
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Initial frequencies of alleles for resistance to Bacillus thuringiensis toxins in field populations of Plutella xylostella and Helicoverpa armigera / by Mahmood Ahmad.
In this study thirteen populations of P. xylostella from crucifer growing areas of Queensland, Victoria, Tasmania, South Australia and Western Australia were surveyed for resistance to Bt (Bacillus thuringiensis) toxins using a leaf-dip bioassay method.
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Pengaruh pemetikanan kuncup bunga terhadap pertumbuhan dan produktivitas pada beberapa aksesi tanaman kapas (Gosypium hirsutum L.)
INDONESIA: Hama penggerek buah (Helicoverpa armigera) sangat potensial menurunkan produktivitas kapas hingga 30-50%. Pengendaliannya secara kimiawi menimbulkan banyak masalah lingkungan, seperti pencemaran dan peningkatan resistensi hama terhadap insektisida kimia sintetis. Satu diantara solusi …
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Symbionts and immune defence in lepidopteran crop pests
… confirmed the presence of the Old World bollworm Helicoverpa armigera in Minas Gerais state and identified the prevalence and genetic diversity of symbionts with potential use for noctuid biocontrol such as densovirus, baculovirus and Wolbachia. Secondly, we identified that in non-infected …
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Floral derived compounds as attractants for agricultural pests in the family Noctuidae
… general attractant across the following species: Helicoverpa armigera and gelotopoeon, Heliothis zea, Spodoptera frugiperda, and Autographa gamma suggesting that these compounds are universal cues to this family of moths when searching for flowers. Further behavioural bioassays found that the …
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Fitness Costs of Resistance to Bacillus thuringiensis in the Pink Bollworm Pectinophora gossypiella
… region in three lepidopeteran pests (Helicoverpa armigera, Heliothis virescens and Pectinophora gossypiella) including the pink bollworm. Cadherin proteins had been hypothesized to play a role in maintaining the integrity of the insect midgut epithelial tissue. Taken together, these …
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Adaptation and hybridization in Helicoverpa crop pests
… I focus on noctuid crop pests in the genus Helicoverpa, which are among the most economically significant agricultural pests in the world. Helicoverpa armigera was first reported as an invasive species in Brazil in 2013, where it hybridized with its native sister species Helicoverpa zea. The …
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Illatcsapda vonzóhatásának növelése hozzáadott egyéb anyagokkal, kártevő lepkék esetében
Dolgozatomban kártevő lepkefajok illatcsapdázásával foglalkozom. Fenilacetaldehid vonzó hatásának növelése céljából egyéb anyagok hozzáadásával próbáltunk nagyobb fogást elérni. Kísérletemet 2008-ban végeztem a családi gyümölcsösben. 12 faj egyedeit sikerült 10 példánynál több egyedszámban …
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Genetic and Environmental Modulation of the Chickpea - Mesorhizobium Symbiosis
… were used, with plants challenged with Helicoverpa armigera larvae or as untreated controls. Drought decreased, and herbivory increased, the amount of leaf exudates. Water regime modulated the response of leaf exudates to herbivory, potentially leading to change in chickpea-herbivore …