Results 41 to 50 of about 6,588 (183)

Inheritance and stability of Cry2Ab2 resistance in an Ostrinia nubilalis strain originating from Wisconsin, U.S.

Pest Management Science, EarlyView.
Resistance to Cry2Ab2 protein in Ostrinia nubilalis is autosomal, functionally recessive, controlled by a single gene, and remains stable over 17 generations in the absence of Cry2Ab2 selection pressure. Abstract BACKGROUND Transgenic corn expressing insecticidal proteins from the bacterium Bacillus thuringiensis (Bt), including Cry1Ab, Cry1Fa and/or ...
Tatum Dwyer, Yucheng Wang, Graham P. Head, Fei Yang   +3 more
wiley   +1 more source

Ocorrência e distribuição espacial da Helicoverpa armigera (Hübner, 1808) (Lepidoptera:Noctuidae) na paisagem agrícola de Santa Catarina, Brasil

Agropecuária Catarinense
Helicoverpa armigera (Hübner, 1808) (Lepidoptera: Noctuidae) é uma praga polífaga de importância econômica para diversos cultivos, estando amplamente distribuída na Ásia, África, Oceania e mais recentemente no continente americano, foi registrada no ...
Fabiane dos Santos, Afonso Inácio Orth, Anna Cristina Xavier, Rubens Onofre Nodari   +3 more
doaj   +1 more source

Hybridization and introgression between Helicoverpa armigera and H. zea: an adaptational bridge

BMC Evolutionary Biology, 2020
Background Invasion of organisms into new ecosystems is increasingly common, due to the global trade in commodities. One of the most complex post-invasion scenarios occurs when an invasive species is related to a native pest, and even more so when they ...
Erick M. G. Cordeiro, Laura M. Pantoja-Gomez, Julia B. de Paiva, Antônio R. B. Nascimento, Celso Omoto, Andrew P. Michel, Alberto S. Correa   +6 more
doaj   +1 more source

RNA interference of the ecdysone receptor gene AgEcR in a wolfberry ‐ specialized strain of Aphis gossypii Glover affects its survival and fecundity and confers resistance in transgenic goji (Lycium barbarum L.)

Pest Management Science, EarlyView.
AgEcR, an ecdysone receptor from Aphis gossypii, is an RNA interference (RNAi) target. Artificial diet screening of five double ‐ stranded RNA fragments identified dsAgEcR2 targeting the D/E junction as the most potent. Transgenic goji expressing dsAgEcR2 caused molting defects and reduced fecundity, suppressing population growth and offering a ...
Ting Yan, Ao‐Ga Li, Run‐Yao Bai, Long Hai, Shu‐Juan Chang, Ying Zhang, Ri‐Heng Wu   +6 more
wiley   +1 more source

Route‐Dependent Toxicity and Ecological Selectivity of Melaleuca alternifolia Essential Oil in Apis mellifera Linnaeus, 1758 (Hymenoptera: Apidae)

Environmental Toxicology, EarlyView.
ABSTRACT The intensification of agricultural practices has led to an increase in the use of insecticides, raising concerns about the exposure of non‐target organisms, particularly pollinators. In this context, plant‐derived essential oils have been proposed as environmentally friendlier alternatives due to their low persistence; however, their ...
Silvane Zancanaro de Oliveira, Elizabete Artus Berte, Juliana Marceli Hofma Lopes, Cristiane Lurdes Paloschi, Edgar de Souza Vismara, Vitória Alves Pereira, Fernanda Raulino Domanski, Natália Ramos Mertz, Fabiana Martins Costa, Everton Ricardi da Silva Lozano, Jhenneffer Tainara Zancanaro Ghizzi, Michele Potrich   +11 more
wiley   +1 more source

Coocclusion of Helicoverpa armigera Single Nucleopolyhedrovirus (HearSNPV) and Helicoverpa armigera Multiple Nucleopolyhedrovirus (HearMNPV): Pathogenicity and Stability in Homologous and Heterologous Hosts

Viruses, 2022
Helicoverpa armigera single nucleopolyhedrovirus (HearSNPV) is a virulent pathogen of lepidopterans in the genera Heliothis and Helicoverpa, whereas Helicoverpa armigera multiple nucleopolyhedrovirus (HearSNPV) is a different virus species with a broader host range. This study aimed to examine the consequences of coocclusion of HearSNPV and HearMNPV on
Maite Arrizubieta, Oihane Simón, Adriana Ricarte-Bermejo, Miguel López-Ferber, Trevor Williams, Primitivo Caballero   +5 more
openaire   +6 more sources

SINERGISME Spodoptera litura Nuclear Polyhedrosis Virus JTM 97C (SlNPV-JTM 97C) DENGAN EKSTRAK BIJI SIRSAK (Annona muricata L.) DALAM PENGENDALIAN Helicoverpa armigera Hubner (Lepidoptera: Noctuidae) PADA TANAMAN KEDELAI (Glycine max L.) DI LABORATOR

Jurnal HPT (Hama Penyakit Tumbuhan), 2016
ABSTRAK Helicoverpa armigera merupakan hama penting pada tanaman kedelai. Penelitian dilakukan untuk mengetahui sinergisme antara ekstrak biji sirsak dan SlNPV-JTM 97C. Sinergisme ekstrak biji sirsak dengan SlNPV-JTM 97C terhadap H.
Raditya Dwi Saputra, Tutung Hadiastono, Aminudin Afandhi, Bedjo Bedjo   +3 more
doaj  

Calcineurin-Modulated Antimicrobial Peptide Expression Is Required for the Development of Helicoverpa armigera

Frontiers in Physiology, 2019
Helicoverpa armigera is a universal pest around the world that has been extensively used as a model organism for agricultural pests. Calcineurin (CAN) is an important Ca2+-dependent phosphatase that is participated in various biological pathways.
Jizhen Wei, Linhong Li, Shuangyan Yao, Shuo Yang, Shuai Zhou, Xiaoguang Liu, Mengfang Du, Shiheng An   +7 more
doaj   +1 more source

Molecular identification for Helicoverpa spp. in Bt and non-Bt crops in central Argentina

Pesquisa Agropecuária Brasileira, 2022
The objective of this work was to identify, by molecular analysis, the species of the genus Helicoverpa in corn, soybean, and lucerne Bt and non-Bt crops, in central Argentina. A total of 1,343 carterpillars were analyzed by PCR-RFLP. Helicoverpa zea was
Emilia Inés Balbi, Fernando Miguel Flores, Daniela Sandra Tosto, Joel Demián Arneodo   +3 more
doaj   +1 more source

Iflaviruses in arthropods: when small is mighty

Insect Science, EarlyView.
Many arthropod species harbor iflaviruses, which often cause covert (asymptomatic) infections, but may still affect host fitness. We review the impact of iflaviruses on arthropod fitness, immunity, behaviour as well as the iflavirus’ host range, transmission, tissue tropism and the interactions with other microorganisms within arthropods.
Annamaria Mattia, Hannah‐Isadora Huditz, Monique M. van Oers, Vera I.D. Ros   +3 more
wiley   +1 more source