Results 201 to 210 of about 121,217 (306)

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

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
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

Leaf Extracts of Coffea racemosa Inhibit Trypsin Activity and Affect Larval Development in Spodoptera frugiperda and Diatraea saccharalis

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
Leaf extracts of Coffea racemosa inhibit digestive trypsins and impair the development of two major lepidopteran pests, Spodoptera frugiperda and Diatraea saccharalis. While both species showed significant enzymatic inhibition, biological responses differed markedly. D. saccharalis exhibited high mortality, whereas S.
Nicole de Paula Souza   +3 more
wiley   +1 more source

How Do Group Size and Social Context Affect Per‐Capita Behavioral Responses in a Nasute Termite?

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
Group living is often assumed to increase individual behavioral activity in eusocial insects through social facilitation. Using controlled bioassays with the termite Nasutitermes corniger, we show that increasing group size instead reduces per‐capita behavioral frequency, consistent with greater behavioral specialization. While antennation and grooming
Sara Y. M. Watanabe   +3 more
wiley   +1 more source

Comparing Methods for Measuring Predation: Toward a Quantitative–Informative Indicator of Natural Pest Control

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
Predation methods vary widely in their ability to quantify biological control. Estimating predation rates (the number of prey killed per predator per time unit) is crucial. Combining predation rates with predator abundance yields real‐time field estimates of pests consumed.
Yann Tricault   +4 more
wiley   +1 more source

Efficacy of Selected Commercial Bio‐Products in Disrupting Symbiont Acquisition and Survival of Halyomorpha halys (Hemiptera: Pentatomidae)

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
Targeting the symbiont Candidatus Pantoea carbekii offers a novel way to manage the invasive brown marmorated stink bug (Halyomorpha halys). Among the three commercial bio‐products tested, Dentamet significantly reduced symbiont acquisition and caused up to 75% nymphal mortality in laboratory conditions, which was confirmed by quantitative Real‐Time ...
Celal Tuncer   +6 more
wiley   +1 more source

Quantifying Species‐ and Community‐Level Predation by Carabids on Pests and Beneficials in Wheat and Beet Fields

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
Using a model that translates qualitative prey detection data (presence/absence in predator gut contents) into quantitative predation rates, we estimate species‐specific diets of nine carabid species across three cropping contexts (wheat, sugar beet, and fodder beet) for five prey types.
Marion Rosec   +12 more
wiley   +1 more source

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