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Showing 1 to 20 of 32 for “"Helicoverpa"”.
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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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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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Molecular Definition of Cytochrome P450 -Mediated Multiple Resistance in Helicoverpa Zea
… I conducted a series of experiments with Helicoverpa zea, a polyphagous noctuid of economic importance. Studies at the population level demonstrated that exposure to xanthotoxin, a linear furanocoumarin, enhanced resistance to the insecticide cypermethrin. Piperonyl butoxide (PBO) …
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Evaluating the Economic Threshold for Helicoverpa zea (Lepidoptera: Noctuidae) in Determinate and Indeterminate Soybeans.
North Carolina State University Theses Entomology.
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Evaluasi ketahanan beberapa galur kapas (Gossypium hirsutum L.) terhadap penggerek buah (Helicoverpa armigera Hbn.)
INDONESIA: Tanaman kapas umumnya sangat peka terhadap serangan serangga hama. Seperti halnya tanaman lain, tanaman kapas juga memiliki mekanisme pertahanan terhadap serangan hama, baik secara morfologi maupun biokimia. Ketahanan secara morfologis berpengaruh secara fisik terhadap serangga hama …
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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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Investigating host use and migration by the corn earworm (Noctuidae: Helicoverpa zea) using stable isotope and morphometric techniques.
… attention on the issue of southward migration of Helicoverpa zea because it could have a major effect on the rate at which this pest evolves resistance to the Bt toxin. Corn is a major host of H. zea and since there is presently limited use of transgenic Bt corn in the Northern corn-belt southern …
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Distribuição espacial e unidade amostral de Lepidópteros broqueadores em tomateiro (Solanum lycopersicum)
… lagartas broqueadoras de frutos N. elegantalis, Helicoverpa spp. e C. includens em tomateiro. Os estudos foram conduzidos em lavouras comerciais de tomate no município de Rio Paranaíba, MG, nos períodos de maio a outubro de 2015 e outubro de 2017 a janeiro de 2018. No primeiro estudo as plantas …
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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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Validación del umbral de acción para el manejo del gusano del fruto Helicoverpa spp (Boddie) Lepidoptera: noctuidae: en el cultivo del tomate Tisma, Nicaragua
… utilizando un umbral de acción para el manejo de Helicoverpa spp también conocido como gusano del fruto, en el cultivo del tomate se estableció un experimento de campo en la época de riego durante el período comprendido (Diciembre 1991 - Abril 1992) en Tisma, Masaya. El estudio se realizó con la …
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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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