Results 61 to 70 of about 4,738 (198)

Comparative pathogenesis of Helicoverpa zea S nucleopolyhedrovirus in noctuid larvae

open access: yesJournal of General Virology, 2001
We used a recombinant of Helicoverpa zea S nucleopolyhedrovirus containing the hsp70/lacZ reporter cassette (HzSNPV-hsp70/lacZ) to quantify mortality relationships and to elucidate early pathogenesis in two permissive hosts, Heliothis virescens and Helicoverpa zea, and one semi-permissive host, Trichoplusia ni. Fourth instar T. ni were highly resistant
Jan O, Washburn   +2 more
openaire   +2 more sources

Full‐length coding sequence analysis of the voltage‐gated sodium channel and acetylcholinesterase genes reveals target‐site mutations and acetylcholinesterase gene duplication in housefly (Musca domestica) populations in Japanese livestock barns

open access: yesMedical and Veterinary Entomology, EarlyView.
We simultaneously analysed insecticide resistance mutations in VGSC and AChE using NGS and hybridization probe capture in houseflies collected from livestock facilities for the first time. Resistance mutations in both VGSC and AChE were detected in most wild populations, suggesting widespread distribution of resistance genes.
Mikie Nakagawa   +7 more
wiley   +1 more source

Adaptive Introgression across Semipermeable Species Boundaries between Local Helicoverpa zea and Invasive Helicoverpa armigera Moths.

open access: yes, 2020
Hybridization between invasive and native species has raised global concern, given the dramatic increase in species range shifts and pest outbreaks due to anthropogenic dispersal.
GORDON, K. H. J.   +11 more
core   +2 more sources

Drought and Herbivory Drive Physiological and Phytohormonal Changes in Soybean (Glycine max Merril): Insights From a Meta‐Analysis

open access: yesPlant, Cell &Environment, Volume 49, Issue 7, Page 4041-4053, July 2026.
ABSTRACT With climate change, abiotic and biotic stresses such as drought and herbivory are predicted to further diminish agricultural productivity. Soybean (Glycine max [L.] Merrill), a crop of global economic importance, is vulnerable to both. However, the interactive effects of drought and herbivory on soybeans haven't been explored, especially ...
Manish Gautam, Rupesh Kariyat
wiley   +1 more source

Potential for Grain Sorghum as a Trap and Nursery Crop for Helicoverpa zea and Its Natural Enemies and Dissemination of HearNPV into Cotton

open access: yesAgronomy
Experiments were conducted in 2020 and 2021 in College Station, TX; Stoneville, MS; and Blackville, SC, to evaluate the potential of grain sorghum to serve as a trap crop for Helicoverpa zea (Boddie), a nursery crop for natural enemies of H.
Wilfrid Calvin   +4 more
doaj   +1 more source

Infestation of Helicoverpa zea and Helicoverpa armigera in maize ears, in three Brazilian regions.

open access: yes, 2016
Infestation of Helicoverpa zea and Helicoverpa armigera in maize ears, in three Brazilian regions.
Edson L. L. Baldin (3373118)   +5 more
core   +1 more source

Aboveground and Belowground Insect Herbivory Changes Maize‐Wireworm Interactions via Root Volatile Cues

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT The rhizosphere harbours critical plant‐herbivore interactions often mediated by small lipophilic molecules (SLMs). Despite the agricultural importance of many soil‐dwelling insects, surprisingly little is known about chemically mediated belowground crop‐pest interactions. Root and shoot herbivores can influence these interactions by modifying
Diego M. Magalhães   +8 more
wiley   +1 more source

Bycatch of common pollinators in pheromone baited traps for monitoring corn earworm (Lepidoptera: Noctuidae) in Missouri Industrial Hemp

open access: yesJournal of Cannabis Research
Background Several traps are recommended for monitoring corn earworm, Helicoverpa zea (Boddie), an important pest of field, vegetable and fruit crops in the U.S. These traps, which are meant to capture H. zea in many cases end up capturing other insects.
Clement Akotsen-Mensah   +3 more
doaj   +1 more source

Genomic innovations, transcriptional plasticity and gene loss underlying the evolution and divergence of two highly polyphagous and invasive Helicoverpa pest species

open access: yesBMC Biology, 2017
Background Helicoverpa armigera and Helicoverpa zea are major caterpillar pests of Old and New World agriculture, respectively. Both, particularly H. armigera, are extremely polyphagous, and H. armigera has developed resistance to many insecticides. Here
S. L. Pearce   +61 more
doaj   +1 more source

Treatment of cotton with plant growth‐promoting rhizobacteria consortium alters host location and oviposition of Spodoptera exigua

open access: yesPest Management Science, Volume 82, Issue 7, Page 7123-7136, July 2026.
Two plant‐growth promoting rhizobacteria (PGPR) consortia (AU8 and TX1) induced a deterrence of host plant location and oviposition behavior of Spodoptera exigua females in both susceptible and resistant cotton plants. Most of the volatile organic compounds (VOCs) increased in PGPR‐treated plants compared to untreated plants. # indicates treatments not
Pascal Mahukpe Ayelo   +3 more
wiley   +1 more source

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