Results 101 to 110 of about 10,501 (229)

Effect of pretreatment with piperonyl butoxide on pyrethroid efficacy against insecticide-resistant Helicoverpa armigera (Lepidoptera: Noctuidae) and Bemisia tabaci (Sternorrhyncha: Aleyrodidae)

open access: yes, 2006
Pyrethroid resistance in B-type Bemisia tabaci Gennadius and Australian Helicoverpa armigera Hubner field populations is primarily conferred by esterase isoenzymes which metabolise and sequester pyrethroid insecticides.
Gunning, R. V.   +5 more
core   +1 more source

Mating and fertility of Helicoverpa armigera F1 females.

open access: yes, 2022
Mating and fertility of Helicoverpa armigera F1 females.
Daniela Zanga (5497301)   +4 more
core   +1 more source

Movement and Survival of Spodoptera litura (Lepidoptera: Noctuidae) Neonate Larvae on Cotton Expressing Bacillus thuringiensis Proteins

open access: yesEntomologia Experimentalis et Applicata, Volume 174, Issue 6, Page 549-558, June 2026.
Spodoptera litura neonates showed increased movement on Bt‐expressing Bollgard 3 (BG) cotton leaf discs but did not initially avoid it. Survival was higher when larvae could move from BG3 to non‐Bt leaf discs. On whole plants, more larvae dispersed from hatching on BG3 cotton compared to non‐Bt cotton. These findings suggest the larval movement differs
Sharna Holman   +3 more
wiley   +1 more source

Gynandromorph Of Helicoverpa Armigera [Lepidoptera : Noctuidae]

open access: yes, 1998
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Josephrajkumar, And. A   +2 more
openaire   +2 more sources

Tasa de depredación de huevos de Helicoverpa armigera (Lepidoptera: Noctuidae) por Orius laevigatus (Hemiptera: Anthocoridae) [PDF]

open access: yes, 2014
Helicoverpa armigera es una plaga polífaga y cosmopolita con un alto impacto económico en gran diversidad de cultivos. En el presente trabajo se evalúa el consumo de huevos del noctuido, por parte de cada uno de los 5 estadíos ninfales y el estado adulto
Héctor Martínez-García [0000-0002-1458-0558]   +5 more
core  

Use of pyrethroid analogues to identify key structural features for enhanced esterase resistance in Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae)

open access: yes, 2007
It has been reported previously that the major resistance mechanism to pyrethroid insecticides by the cotton bollworm Helicoverpa armigera (Hubner) in Australia is a consequence of overproduction of esterase isoenzymes.
Gunning, R. V.   +11 more
core   +1 more source

Mortality of the Helicoverpa armigera F1 larvae.

open access: yes, 2022
Mortality of the Helicoverpa armigera F1 larvae.
Daniela Zanga (5497301)   +4 more
core   +1 more source

Tomato plants control leaf sodium levels to limit damage by Spodoptera littoralis larvae

open access: yesNew Phytologist, Volume 250, Issue 5, Page 3417-3427, June 2026.
Summary Sodium is an essential element for animal growth and survival. Here we test the hypothesis that plants exposed to insect feeding can translocate sodium from the feeding site to other plant organs as a defense strategy against phytophagous insects, which need sodium in their diet.
Valerio Cirillo   +12 more
wiley   +1 more source

Learning in the nectar foraging behaviour of Helicoverpa armigera

open access: yes, 1998
.\ud 1. Learning may enable insects to obtain nectar from flowers more efficiently. Learning in nectar foraging has been shown primarily in studies of bees and butterflies. Here, learning is demonstrated in the nectar foraging behaviour of a noctuid moth,
Wright, D.J.   +2 more
core   +1 more source

Feeding Deterrent and Genotoxicity Analysis of a novel Phytopesticide by using Comet Assay against Helicoverpa armigera (HÜbner) (Lepidoptera: Noctuidae)

open access: yesBrazilian Archives of Biology and Technology, 2015
Newly developed Phytopesticidal formulations from pongam and neem oils were evaluated for their feeding deterrent activity using leaf disc choice and no-choice methods, and genotoxic study using comet assay against Helicoverpa armigera at different ...
Soosaimanickam Maria Packiam   +3 more
doaj   +1 more source

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