Results 191 to 200 of about 13,533 (233)
Some of the next articles are maybe not open access.
Pheromone biosynthetic pathways in the moths Helicoverpa zea and Helicoverpa assulta
Insect Biochemistry and Molecular Biology, 2002Sex pheromones of many Lepidopteran species have relatively simple structures consisting of a hydrocarbon chain with a functional group and usually one to several double bonds. The sex pheromones are usually derived from fatty acids through a specific biosynthetic pathway. We investigated the incorporation of deuterium-labeled palmitic and stearic acid
Man-Yeon, Choi +3 more
openaire +2 more sources
Science & Technology Journal, 2021
During investigations; homology model of 3D-structure was built for sequence of polyhedrin protein of Helicoverpa armigera nucleopolyhedrovirus, containing 246 amino acids (Accession: ACI05106.1 GI: 205946055), and evaluated through multiple tools/ applications to judge extent of accuracy in light of existing crystal structure.
Ritu Srivastava, Amritesh Chandra Shukla
openaire +1 more source
During investigations; homology model of 3D-structure was built for sequence of polyhedrin protein of Helicoverpa armigera nucleopolyhedrovirus, containing 246 amino acids (Accession: ACI05106.1 GI: 205946055), and evaluated through multiple tools/ applications to judge extent of accuracy in light of existing crystal structure.
Ritu Srivastava, Amritesh Chandra Shukla
openaire +1 more source
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 +6 more
openaire +2 more sources
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 +6 more
openaire +2 more sources
Pest Management Science, 2021
Abstract BACKGROUND The invasion of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) into the New World has made it possible for this pest to hybridize with a native American species, H. zea
Danielly AM Rios +7 more
openaire +2 more sources
Abstract BACKGROUND The invasion of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) into the New World has made it possible for this pest to hybridize with a native American species, H. zea
Danielly AM Rios +7 more
openaire +2 more sources
Annals of the Entomological Society of America, 1993
Natural populations of Heliothis virescens (F.) and Helicoverpa zea (Boddie) were studied using starch gel electrophoresis as part of a program to understand gene flow, insecticide resistance, and evolutionary relationships in the group. This paper treats the electrophoretic techniques developed and used in our laboratories, compares our results with ...
Mallet, J. +3 more
openaire +2 more sources
Natural populations of Heliothis virescens (F.) and Helicoverpa zea (Boddie) were studied using starch gel electrophoresis as part of a program to understand gene flow, insecticide resistance, and evolutionary relationships in the group. This paper treats the electrophoretic techniques developed and used in our laboratories, compares our results with ...
Mallet, J. +3 more
openaire +2 more sources
Resistance Mechanisms of Helicoverpa armigera
2016The cotton bollworm, Helicoverpa armigera, is one of the major agricultural pest species in the Old World and recently also of the New World. This noctuid moth species is highly polyphagous and possesses a huge geographical distribution and the ability to quickly evolve resistance to insecticides from different chemical classes.
Joußen, N., Heckel, D.
openaire +2 more sources
Journal of Insect Physiology, 2007
Helicoverpa armigera and Helicoverpa assulta are sympatric sibling species, and in the laboratory they can interbreed and produce viable offspring. To assess the contributions of temporal barriers and sexual barriers to premating isolation, we investigated both the temporal rhythms of calling behavior and pheromone titers of H. armigera and H.
Qing-Lei, Ming +2 more
openaire +2 more sources
Helicoverpa armigera and Helicoverpa assulta are sympatric sibling species, and in the laboratory they can interbreed and produce viable offspring. To assess the contributions of temporal barriers and sexual barriers to premating isolation, we investigated both the temporal rhythms of calling behavior and pheromone titers of H. armigera and H.
Qing-Lei, Ming +2 more
openaire +2 more sources
Journal of Invertebrate Pathology, 2015
Helicoverpa armigera single nucleocapsid nucleopolyhedrovirus (HearNPV) is an obligatory and lethal parasite of the cotton bollworm and has been extensively used in China for the control of this notorious pest. Digital gene expression (DGE) analysis was adopted for an overall comparison of transcriptome profiling between HearNPV-infected and control ...
Zhen, Li +5 more
openaire +2 more sources
Helicoverpa armigera single nucleocapsid nucleopolyhedrovirus (HearNPV) is an obligatory and lethal parasite of the cotton bollworm and has been extensively used in China for the control of this notorious pest. Digital gene expression (DGE) analysis was adopted for an overall comparison of transcriptome profiling between HearNPV-infected and control ...
Zhen, Li +5 more
openaire +2 more sources
Australian Journal of Zoology, 1993
Patterns of endothermic warm-up and flight thresholds were determined for Helicoverpa punctigera and H. armigera. Both species utilise endothermic mechanisms of heat gain to raise thoracic temperature (T(th)) to a level at which flight is possible. Endothermic warm-up, accomplished by wing shivering, was possible from a minimum of 3-5-degrees-C.
openaire +1 more source
Patterns of endothermic warm-up and flight thresholds were determined for Helicoverpa punctigera and H. armigera. Both species utilise endothermic mechanisms of heat gain to raise thoracic temperature (T(th)) to a level at which flight is possible. Endothermic warm-up, accomplished by wing shivering, was possible from a minimum of 3-5-degrees-C.
openaire +1 more source