{"title":"Evidence for Female Autodetection and Plasticity of Pheromone Response in Helicoverpa zea","authors":"Ersa Gjelaj, Russell Easy, N. Kirk Hillier","doi":"10.1111/eea.70011","DOIUrl":null,"url":null,"abstract":"<p>This study investigated autodetection in female corn earworm, <i>Helicoverpa zea</i> Boddie (Lepidoptera: Noctuidae), revealing that their sensitivity to conspecific pheromones is environmentally modulated. We developed an “ungrouped” rearing strategy to minimize pre-exposure. Electroantennogram recordings showed differential responses between ungrouped (naïve) and grouped (pheromone-pre-exposed) females, demonstrating female sensitivity to their own pheromones, influenced by environmental history. Behaviorally, autodetection elicited spacing behavior, most pronounced in naïve females. These findings highlight that pre-exposure can decrease peripheral sensitivity, a crucial consideration for laboratory studies and the development of effective pheromone-based pest management strategies that account for female behavioral adaptation.</p>","PeriodicalId":11741,"journal":{"name":"Entomologia Experimentalis et Applicata","volume":"173 11","pages":"1236-1246"},"PeriodicalIF":1.7000,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/eea.70011","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Entomologia Experimentalis et Applicata","FirstCategoryId":"97","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/eea.70011","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENTOMOLOGY","Score":null,"Total":0}
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Abstract
This study investigated autodetection in female corn earworm, Helicoverpa zea Boddie (Lepidoptera: Noctuidae), revealing that their sensitivity to conspecific pheromones is environmentally modulated. We developed an “ungrouped” rearing strategy to minimize pre-exposure. Electroantennogram recordings showed differential responses between ungrouped (naïve) and grouped (pheromone-pre-exposed) females, demonstrating female sensitivity to their own pheromones, influenced by environmental history. Behaviorally, autodetection elicited spacing behavior, most pronounced in naïve females. These findings highlight that pre-exposure can decrease peripheral sensitivity, a crucial consideration for laboratory studies and the development of effective pheromone-based pest management strategies that account for female behavioral adaptation.
期刊介绍：
Entomologia Experimentalis et Applicata publishes top quality original research papers in the fields of experimental biology and ecology of insects and other terrestrial arthropods, with both pure and applied scopes. Mini-reviews, technical notes and media reviews are also published. Although the scope of the journal covers the entire scientific field of entomology, it has established itself as the preferred medium for the communication of results in the areas of the physiological, ecological, and morphological inter-relations between phytophagous arthropods and their food plants, their parasitoids, predators, and pathogens. Examples of specific areas that are covered frequently are:
host-plant selection mechanisms
chemical and sensory ecology and infochemicals
parasitoid-host interactions
behavioural ecology
biosystematics
(co-)evolution
migration and dispersal
population modelling
sampling strategies
developmental and behavioural responses to photoperiod and temperature
nutrition
natural and transgenic plant resistance.
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