Side effects of pesticides used in organic and conventional tomato crops on Dolichogenidea gelechiidivoris, a parasitoid of Tuta absoluta.

IF 3.8 1区农林科学 Q1 AGRONOMY

Pest Management Science Pub Date : 2025-06-16 DOI:10.1002/ps.8982

Pablo Urbaneja-Bernat, Jordi Riudavets, Gabriele Caporusso, Judit Arnó

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引用次数: 0

Abstract

Background: Dolichogenidea gelechiidivoris is a key biological control agent of Tuta absoluta, one of the most destructive pests in tomato crops worldwide. As part of integrated pest management (IPM) programs, pesticides are commonly applied to control multiple pests. However, their compatibility with parasitoids such as D. gelechiidivoris remains poorly understood. This study evaluated the impact of eight commonly used pesticides on D. gelechiidivoris through four exposure routes relevant to field conditions.

Results: Among the pesticides tested, spinosad and cyantraniliprole were the most toxic, causing up to 90% adult mortality via fresh residues and topical exposure. These compounds also showed high ingestion toxicity and completely suppressed parasitoid emergence from parasitized hosts. Conversely, sulfur, spiromesifen and spirotetramat had a low impact on adult survival, and allowed parasitoid emergence rates similar to the control. Notably, Bacillus thuringiensis significantly reduced female egg load without increasing adult mortality, indicating a sublethal reproductive effect. Overall, pesticide impact varies depending on the exposure route, with contact and topical exposure generally leading to higher mortality than ingestion or effects on immature stages.

Conclusion: This study highlights substantial variation in the side effects of IPM-compatible pesticides on D. gelechiidivoris. While some products were highly disruptive, others proved more selective and compatible with biological control. These findings support more informed pesticide selection in tomato IPM, balancing effective T. absoluta control with the conservation of key parasitoids. © 2025 The Author(s). Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

查看原文本刊更多论文

有机与常规番茄作物中农药对茄蚜的毒副作用。

背景：gelechiidivoris是一种重要的生物防治剂，是番茄作物中最具破坏性的害虫之一。作为害虫综合管理（IPM）计划的一部分，农药通常用于控制多种害虫。然而，它们与拟寄生物的相容性尚不清楚。本研究通过与田间条件相关的4种暴露途径，评价了8种常用农药对姬姬田鼠的影响。结果：在所检测的农药中，spinosad和cyantranilprole的毒性最大，通过新鲜残留和局部接触可导致高达90%的成人死亡率。这些化合物还显示出较高的摄食毒性，并完全抑制被寄生宿主的寄生蜂羽化。相反，硫、螺虫胺和螺虫胺对成虫存活率的影响较小，并且使寄生蜂的羽化率与对照相似。值得注意的是，苏云金芽孢杆菌显著降低了雌性卵子的载量，但没有增加成虫的死亡率，表明了亚致死的生殖效应。总体而言，农药的影响因接触途径而异，接触和局部接触通常比摄入或对未成熟阶段的影响导致更高的死亡率。结论：本研究强调了ipm配伍农药对姬蝶的毒副作用存在显著差异。虽然一些产品具有高度破坏性，但其他产品被证明更具选择性，并且与生物防治相兼容。这些发现支持在番茄IPM中更明智地选择农药，平衡有效控制绝对T.与保护主要寄生蜂。©2025作者。由John Wiley & Sons Ltd代表化学工业协会出版的《害虫管理科学》。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Pest Management Science 农林科学-昆虫学

CiteScore

7.90

自引率

9.80%

发文量

553

审稿时长

4.8 months

期刊介绍： Pest Management Science is the international journal of research and development in crop protection and pest control. Since its launch in 1970, the journal has become the premier forum for papers on the discovery, application, and impact on the environment of products and strategies designed for pest management. Published for SCI by John Wiley & Sons Ltd.