Results 91 to 100 of about 4,749 (197)

Controle de broqueadores de frutos de tomateiro com uso de faixas de culturas circundantes

open access: yesBioscience Journal, 2006
Este trabalho objetivou avaliar o efeito do plantio de faixas circundantes à cultura do tomateiro sobre insetos broqueadores de frutos em cultivos de verão e de inverno.
Silvana Vieira de Paula   +3 more
doaj  

Glucosinolate hydrolysis products suppress entomopathogenic nematodes in vitro but do not protect sequestering flea beetle larvae in vivo

open access: yesPest Management Science, Volume 82, Issue 4, Page 3603-3612, April 2026.
The flea beetle's glucosinolate‐based chemical defense fails to protect larvae from nematode infection. However, the defense inhibits the nematode's symbiotic bacteria, thereby potentially impairing nematode reproduction and biocontrol success. Abstract BACKGROUND The efficacy of entomopathogenic nematodes (EPNs) in the biological control of insect ...
Johannes Körnig   +9 more
wiley   +1 more source

Evaluation of bio-rational insecticides to control Helicoverpa armigera (Hübner) and Spodoptera exigua (Hübner) (Lepidoptera: Noctuidae) fed on Vicia faba L.

open access: yes, 2008
Two botanical pesticides, Neem Azal-T/S (NA) and Quassia amara, one biopesticide, Bacillus thuringiensis subsp. aizawai (Bta) and one combination of Bta + NA were tested against 2nd and 4th instar larvae of the noctuids Helicoverpa armigera (Hübner) and ...
Holaschke, Markus   +2 more
core  

Phylogenetic insights into Dyopsinae (Lepidoptera, Noctuidae): Resolving the systematic position of Thiacidinae

open access: yesSystematic Entomology, Volume 51, Issue 2, April‐June 2026.
In this study, a new phylogenetic study reclassifies the moth subfamilies Dyopsinae and Thiacidinae. For the first time, Thiacidas postica—the type species of Thiacidinae—was sequenced and shown to belong within Dyopsinae, in the Ceroctena clade. As a result, Thiacidinae is reinstated as the tribe Thiacidini (stat. nov.) within Dyopsinae.
Reza Zahiri   +7 more
wiley   +1 more source

Common receptor for Bacillus thuringiensis toxins Cry1Ac, Cry1Fa, and Cry1Ja in Helicoverpa armigera, Helicoverpa zea and Spodoptera exigua

open access: yes, 2015
Binding studies using 125I-Cry1Ac and biotinylated Cry1Fa toxins indicate the occurrence of a common receptor for Cry1Ac, Cry1Fa, and Cry1Ja in Helicoverpa armigera, Helicoverpa zea, and Spodoptera exigua.
Hernández Rodríguez, Carmen Sara   +1 more
core   +1 more source

A Volatile Cue From a Specialist Herbivore Primes Gene Expression Against Biotic Stress in Tall Goldenrod (Solidago altissima L.)

open access: yesPlant, Cell &Environment, Volume 49, Issue 3, Page 1424-1438, March 2026.
ABSTRACT Insect‐derived molecular cues can prime plant defences against herbivore attack. The genes that are sensitive to priming, and how their expression changes on the scale of days, have not been fully resolved. Moreover, priming may affect interactions with insects that are not the source of the priming cue.
Robert J. Witkowski   +4 more
wiley   +1 more source

Oviposition and larval establishment of three ‘generalist’ noctuids on Capsicum annuum

open access: yesAustral Entomology, Volume 65, Issue 1, February 2026.
Abstract Understanding the oviposition and foraging behaviour of pestiferous lepidopterans on their economically important food plants guides the development of effective pest management tactics. Here, we examined the oviposition behaviour and larval establishment of three noctuid species on a single crop—capsicum (Capsicum annuum).
Trevor M. Volp   +3 more
wiley   +1 more source

Helicoverpa armigera e Helicoverpa zea (Lepidoptera: Noctuidae) no Brasil : distribuição temporal e hibridização [PDF]

open access: yes, 2021
Tese (doutorado) — Universidade de Brasília, Faculdade de Planaltina, Programa de Pós-Graduação em Ciências Ambientais, 2021.O gênero Helicoverpa Hardwick, 1965 (Lepidoptera: Noctuidae: Heliothinae) é cosmopolita e compreende insetos praga de grande ...
Rios, Danielly Albuquerque Medeiros
core  

Occurrence and Ear Damage of Helicoverpa zea on Transgenic Bacillus thuringiensis Maize in the Field in Texas, U.S. and Its Susceptibility to Vip3A Protein

open access: yesToxins, 2019
The corn earworm, Helicoverpa zea (Boddie), is a major pest of Bacillus thuringiensis (Bt) maize and cotton in the U.S. Reduced efficacy of Bt plants expressing Cry1 and Cry2 against H. zea has been reported in some areas of the U.S.
Fei Yang   +5 more
doaj   +1 more source

Biological and reproductive parameters of Helicoverpa armigera and Helicoverpa zea reared on artificial diet in Argentina

open access: yes, 2021
Helicoverpa armigera and H. zea (Lepidoptera Noctuidae) are genetically and physiologically closely related species that havemating compatibility under laboratory conditions. Considering the presence of H. armigera in Argentina, the lack information aboutits biology and evolutionary relationship with H.
Murúa, María Gabriela   +5 more
openaire   +1 more source

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