Sublethal impacts of Buprofezin and Pyriproxyfen on cotton mealybug Phenacoccus solenopsis through transgenerational hormesis

IF 1.5 3区农林科学 Q2 AGRONOMY Phytoparasitica Pub Date : 2024-03-06 DOI:10.1007/s12600-024-01138-6

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Abstract

Insect pests are exposed to repeated applications of pesticides to effectively manage the pest species. This induces insecticide resistance and resurgence of target insect pest, along with an accelerated growth rate of the targeted individual. The present experiment was put into execution to examine transgenerational hormesis against different biological parameters of Phenacoccus solenopsis when exposed to sublethal concentrations of Pyriproxyfen (Pyriproxyfen® 10 EC) and Buprofezin (Buprofezin® 25 WP). Insects exhibited concentration-dependent mortality diminishing in succeeding generations. P. solenopsis receiving the sublethal concentration of LC₁₀ (0.03%) of Pyriproxyfen® exhibited hormesis in natality in generation G-4 (1282.4 nymphs/20 females) and G-5 (1296.2 nymphs/20 females). The adult female exposed to LC₁₀ (0.02%) of Buprofezin® also expressed hormesis in natality in G-4 (1261.5 nymphs/20 females) and G-5 (1282.8 nymphs/20 females). Hormesis in female longevity was also found when treated with a sublethal concentration of LC₁₀ for Pyriproxyfen® (0.03%) in G-4 (46.41 days) and G-5(46.35 days). Similarly, adults in G-4 and G-5 at a sublethal concentration of LC₁₀ (0.02%) for Buprofezin® induced hormesis 45.53 days and 46.69 days, respectively, whereas in G-4 (4.79 days) and G-5 (4.92 days) at stimulatory concentrations of LC₁₀ (0.03%) for pyriproxyfen®. The research findings indicate that the consistent application of sublethal concentrations can elicit stimulatory effects on various biological traits. This highlights insects’ remarkable ability to adapt to stressors. It is imperative to consider this aspect when incorporating pest management programs.

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Buprofezin 和 Pyriproxyfen 通过转代激素作用对棉花绵粉蚧 Phenacoccus solenopsis 的亚致死影响

摘要为有效控制害虫种类，害虫会反复施用杀虫剂。这会诱导目标害虫对杀虫剂产生抗药性并死灰复燃，同时目标个体的生长速度也会加快。本实验针对拟南芥（Phenacoccus solenopsis）暴露于亚致死浓度的吡丙醚（Pyriproxyfen® 10 EC）和噻虫嗪（Buprofezin® 25 WP）时的不同生物参数，研究了转基因激素作用。昆虫的死亡率随浓度变化而递减。接受亚致死浓度 LC10（0.03%）吡虫啉® 的 P. solenopsis 在第 G-4 代（1282.4 头若虫/20 头雌虫）和 G-5 代（1296.2 头若虫/20 头雌虫）中表现出激素作用。暴露于丁氟螨酯 LC10（0.02%）的成年雌虫在 G-4 代（1261.5 若虫/20 只雌虫）和 G-5 代（1282.8 若虫/20 只雌虫）中也表现出激素滞育现象。用亚致死浓度的吡丙醚 LC10（0.03%）处理 G-4（46.41 天）和 G-5（46.35 天）时，也发现了雌虫寿命的激素效应。同样，G-4和G-5的成虫在LC10亚致死浓度（0.02%）的噻虫嗪®诱导激素发生期分别为45.53天和46.69天，而在LC10刺激浓度（0.03%）的吡虫啉®诱导激素发生期G-4（4.79天）和G-5（4.92天）。研究结果表明，持续施用亚致死浓度可对各种生物性状产生刺激作用。这凸显了昆虫适应压力的卓越能力。在实施害虫管理计划时，必须考虑到这一点。

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来源期刊

Phytoparasitica 生物-植物科学

CiteScore

2.90

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Phytoparasitica is an international journal on Plant Protection, that publishes original research contributions on the biological, chemical and molecular aspects of Entomology, Plant Pathology, Virology, Nematology, and Weed Sciences, which strives to improve scientific knowledge and technology for IPM, in forest and agroecosystems. Phytoparasitica emphasizes new insights into plant disease and pest etiology, epidemiology, host-parasite/pest biochemistry and cell biology, ecology and population biology, host genetics and resistance, disease vector biology, plant stress and biotic disorders, postharvest pathology and mycotoxins. Research can cover aspects related to the nature of plant diseases, pests and weeds, the causal agents, their spread, the losses they cause, crop loss assessment, and novel tactics and approaches for their management.