Results 81 to 90 of about 22,549 (224)

Whole‐genome sequencing reveals novel ryanodine receptor mutations P4568L and Y4701D conferring high‐level chlorantraniliprole resistance in Spodoptera litura (Lepidoptera: Noctuidae)

open access: yesPest Management Science, Volume 82, Issue 1, Page 815-824, January 2026.
Whole‐genome sequencing identified novel ryanodine receptor mutations P4568L and Y4701D causing >1000‐fold chlorantraniliprole resistance in Spodoptera litura, enabling development of molecular diagnostics for proactive resistance management. Abstract BACKGROUND Spodoptera litura is a significant insect pest that attacks many agricultural crops ...
Yizhou Chen   +4 more
wiley   +1 more source

The Roles of Plant MicroRNAs in Defence Against Pathogens

open access: yesMolecular Plant Pathology, Volume 27, Issue 1, January 2026.
miRNAs modulate plant immunity against various pathogens, including fungi, bacteria, viruses, nematodes and oomycetes, by targeting pathogen effectors and modulating hormonal signalling. ABSTRACT MicroRNAs (miRNAs) are a class of noncoding RNAs that play important roles in regulating gene expression.
Abdou Mahaman Mahamadou   +6 more
wiley   +1 more source

Molecular characterization of Helicoverpa armigera Nucleopolyhedrovirus (HearNPV) on Helicoverpa armigera Hübner larvae (Lepidoptera: Noctuidae)

open access: yesJurnal Hama dan Penyakit Tumbuhan Tropika
Nucleopolyhedrovirus (NPV) is a type of biological agent that can be effectively used as a bioinsecticide to control the cob borer caterpillar in corn. Among these viruses, HearNPV (Helicoverpa armigera Nucleopolyhedrovirus) stands out due to its host specificity, environmentally safety, and lack of harm to non-target organisms.
Yayi Munara Kusumah   +3 more
openaire   +1 more source

Modification of the existing maximum residue levels for acetamiprid in various crops and honey

open access: yesEFSA Journal, Volume 23, Issue 12, December 2025.
Abstract In accordance with Article 6 of Regulation (EC) No 396/2005, the applicants Nisso Chemical Europe GmbH and Nufarm Europe GmbH submitted two separate requests to the competent national authorities in the Netherlands and Austria, respectively, to modify the existing maximum residue levels (MRLs) for the active substance acetamiprid.
European Food Safety Authority (EFSA)   +18 more
wiley   +1 more source

Virus morphogenesis of Helicoverpa armigera nucleopolyhedrovirus in Helicoverpa zea serum-free suspension culture

open access: yesJournal of General Virology, 2000
Helicoverpa armigera single nucleopolyhedrovirus (HaSNPV) replication in Helicoverpa zea serum-free suspension culture was studied in detail and the sequence of virus morphogenesis was determined by transmission electron microscopy.
Lua, L. H. L., Reid, S.
openaire   +3 more sources

Azadirachtin-A from Azadirachta indica Impacts Multiple Biological Targets in Cotton Bollworm Helicoverpa armigera

open access: yesACS Omega, 2019
Azadirachtin-A (AzaA) from the Indian neem tree (Azadirachta indica) has insecticidal properties; however, its molecular mechanism remains elusive.
V. Dawkar   +10 more
semanticscholar   +1 more source

Evolutionary Changes of GT1 Provide Insights Into the Adaptation of Butterflies to Plant Feeding

open access: yesEcology and Evolution, Volume 15, Issue 11, November 2025.
We investigated the evolution of glycosyltransferase 1 (GT1) genes in 69 butterfly species to explore their association with host plant adaptation. Our results reveal frequent tandem duplications and adaptive selection in GT1s, especially in UGT33 and UGT40 subfamilies, alongside expression patterns suggesting functional diversification.
Jinyu Wu   +7 more
wiley   +1 more source

Phylogeography of the Recent Expansion of Helicoverpa armigera (Lepidoptera: Noctuidae) in South America and the Caribbean Basin

open access: yesAnnals of the Entomological Society of America, 2019
The Old World bollworm, Helicoverpa armigera (Hübner), is one of the most destructive agricultural pests worldwide. It was first recorded in Brazil in 2013, yet despite this recent introduction, H.
L. R. Tembrock   +3 more
semanticscholar   +1 more source

Nature's Shield: Exploring Nonglandular Trichomes (NGT) as Key Players in Plant Defense Mechanisms

open access: yesPlant Direct, Volume 9, Issue 11, November 2025.
ABSTRACT Trichomes are found on almost all terrestrial plants and are derived from epidermal cells. Nonglandular trichomes (NGTs) protect plants from environmental stress, such as pest and pathogen invasion, reduce water loss, and increase resistance to abiotic stressors, including UV radiation, cold, and extreme temperatures.
Muhammad Ahmad   +10 more
wiley   +1 more source

Polycalin is involved in the action mechanism of Cry2Aa toxin in Helicoverpa armigera (Hübner)

open access: yesJournal of Integrative Agriculture, 2019
Receptor proteins on the brush border membrane of the insect midgut epithelium are involved in the mode of action of insecticidal Cry proteins from Bacillus thuringiensis (Bt).
Bing-jie WANG   +6 more
doaj   +1 more source

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