Results 231 to 240 of about 26,948 (256)

Resistance selection of indoxacarb in Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae): cross-resistance, biochemical mechanisms and associated fitness costs.

Pest Management Science, 2018
BACKGROUND The cotton bollworm Helicoverpa armigera is a worldwide insect pest with the ability to develop resistance to many insecticides. Indoxacarb, a sodium channel blocker, is an important insecticide that is used to control H. armigera.
Li Cui, Qinqin Wang, Haoliang Qi, Qiyuan Wang, Huizhu Yuan, Changhui Rui   +5 more
semanticscholar   +1 more source

Genomic organization of Helicoverpa armigera single-nucleocapsid nucleopolyhedrovirus

Archives of Virology, 2000
The genome organization of the Helicoverpa armigera single-nucleocapsid nucleopolyhedrovirus (HearNPV) was investigated and compared to that of other baculoviruses. A detailed physical map was constructed for the restriction enzymes BamHI, BglII, EcoRI, HindIII, KpnI, PstI, SacI and XhoI.
Chen, X., Li, M., Sun, X., Arif, B.M., Hu, Z.H., Vlak, J.M.   +5 more
openaire   +3 more sources

Resistance and Synergism of Novel Insecticides in Field Populations of Cotton Bollworm Helicoverpa armigera (Lepidoptera: Noctuidae) in Pakistan.

Journal of Economic Entomology, 2019
The cotton bollworm Helicoverpa armigera (Hübner) is still a serious pest of non-Bt crops in Asia and Africa. It has been a notorious pest in developing resistance to all the insecticide classes applied for its control. Response of field populations of H.
Mushtaq Ahmad, Bilal Rasool, Munir Ahmad, D. Russell   +3 more
semanticscholar   +1 more source

Egg cannibalism in Helicoverpa armigera on sorghum and pigeonpea

BioControl, 2002
Egg cannibalism by Helicoverpa armigeraHubner (Lepidoptera: Noctuidae) larvae was studied in the laboratory and in the field. In laboratory experiments, first instars were exposed to increasing densities of H. armigera eggs on sorghum, Sorghum bicolor (L.) Moench, and pigeonpea, Cajanus cajan (L.) Millsp.
Sigsgaard, L., Greenstone, M. H., Duffield, S. J.   +2 more
openaire   +2 more sources

Cytochrome P450-Mediated λ-Cyhalothrin-Resistance in a Field Strain of Helicoverpa armigera from Northeast China.

Journal of Agricultural and Food Chemistry, 2019
Resistance to pyrethroid and organophosphate insecticides has been a growing problem in the management of cotton bollworm Helicoverpa armigera (Hübner) populations in the Yangtze River and Yellow River valleys of China, but resistance status and ...
Zi-Guo Wang, Shan Jiang, D. Mota-Sanchez, Wei Wang, Xinru Li, Yu‐Lin Gao, Xu-Peng Lu, Xueqing Yang   +7 more
semanticscholar   +1 more source

Chitosan nanocarriers mediated dsRNA delivery in gene silencing for Helicoverpa armigera biocontrol.

Pesticide Biochemistry and Physiology, 2022
Henry Kolge, K. Kadam, V. Ghormade
semanticscholar   +1 more source

Gossypol toxicity and detoxification in Helicoverpa armigera and Heliothis virescens

Insect Biochemistry and Molecular Biology, 2016
Gossypol is a polyphenolic secondary metabolite produced by cotton plants, which is toxic to many organisms. Gossypol's aldehyde groups are especially reactive, forming Schiff bases with amino acids of proteins and cross-linking them, inhibiting enzyme activities and contributing to toxicity. Very little is known about gossypol's mode of action and its
Corinna Krempl, Hanna M. Heidel-Fischer, Guillermo Hugo Jiménez-Alemán, Michael Reichelt, Riya Christina Menezes, Wilhelm Boland, Heiko Vogel, David G. Heckel, Nicole Joußen   +8 more
openaire   +3 more sources

Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) in Brazil: the Big Outbreak Monitored by Light Traps

Neotropical Entomology, 2021
A. Specht, D. Sosa‐Gómez, D. A. M. Rios, V. C. M. Claudino, S. Paula-Moraes, J. Malaquias, Fernando-Antonio Macena Da Silva, V. F. Roque-Specht   +7 more
semanticscholar   +1 more source

Inhibition of pheromone biosynthesis in Helicoverpa armigera by pheromonostatic peptides

Journal of Insect Physiology, 2003
Male insect accessory glands contain factors that are transferred during mating to the female, some inducing post-mating behavior, including the cessation of pheromone production, non-receptivity and the initiation of oviposition. One such factor is the Drosophila melanogaster sex-peptide (DrmSP).
V.K. Nagalakshmi, Eric Kubli, Ada Rafaeli, Yves Choffat, D. Eliyahu, Shalom W. Applebaum   +5 more
openaire   +3 more sources

Susceptibility of Brazilian Populations of Helicoverpa armigera and Helicoverpa zea (Lepidoptera: Noctuidae) to Vip3Aa20

Journal of Economic Entomology, 2017
Transgenic maize expressing the insecticidal protein Vip3Aa20 is increasingly being adopted in Brazil. In this study, we determined the baseline susceptibility of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) and Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae) to Vip3Aa20, as part of an Insect Resistance Management (IRM) program.
N A Leite, R M Pereira, M R Durigan, D Amado, J Fatoretto, F C L Medeiros, C Omoto   +6 more
openaire   +3 more sources