杀虫剂对 Bathycoelia distincta(异翅目:五蠹科)的致死和亚致死效应

IF 1.2 4区 农林科学 Q3 ENTOMOLOGY
Elisa Elisa, Jeremy Allison Allison, B. Hurley, B. Slippers, Gerda Fourie
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引用次数: 0

摘要

Bathycoelia distincta 是南非澳洲坚果果园中最主要的蝽类害虫之一。了解杀虫剂对这种害虫的毒性和亚致死效应对有效防治这种害虫至关重要。这项研究测试了四种商用杀虫剂配方,包括一种有机磷酸酯(乙酰甲胺磷)和三种拟除虫菊酯(氰戊菊酯、β-氟氯氰菊酯和氟氰戊菊酯)。对这些杀虫剂的毒性及其对流动性的行为影响进行了评估。还通过用亚致死浓度(LC10 和 LC30)处理 B. distincta 成虫,确定了溴氰菊酯对亲代 B. distincta(F0)和子代 B. distincta(F1)生物参数的亚致死效应。在毒性生物测定中,乙酰甲胺磷对 B. distincta 的毒性高于高效氯氟氰菊酯、β-氟氯氰菊酯和涕灭威。只有接触了拟除虫菊酯的虫子才会发生行为变化,导致行走距离增加和角速度降低。在 F0 代中,LC30 会降低繁殖力,而 LC10 和 LC30 则会加速 F1 代的发育。这些结果表明,拟除虫菊酯可能会加强这种害虫的传播并刺激后代种群的增长。应开展进一步的实验来证实这些结果,并了解除虫菊酯对 B. distincta 的作用机制。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Lethal and sublethal effects of insecticides on Bathycoelia distincta (Heteroptera: Pentatomidae)
Bathycoelia distincta is one of the most dominant stink bug pests associated with macadamia orchards in South Africa. Understanding the toxicity and sublethal effects of insecticides on this pest is essential for its effective management. This study tested four commercial insecticide formulations, consisting of one organophosphate (acephate) and three pyrethroids (lambda-cyhalothrin, beta-cyfluthrin and tau-fluvalinate). The toxicity of these insecticides and their behavioural effects on mobility were assessed. The sublethal effects of lambda-cyhalothrin on the biological parameters of parent B. distincta (F0) and offspring generations (F1) were also determined by treating B. distincta adults with sublethal concentrations (LC10 and LC30). In toxicity bioassays, acephate was more toxic to B. distincta than lambda-cyhalothrin, beta-cyfluthrin and tau-fluvalinate. Behavioural changes were only observed in bugs exposed to pyrethroids, resulting in an increase in the distance walked and decrease of angular velocity. In the F0 generation, LC30 reduced the fecundity whereas the LC10 and LC30 accelerated development of the F1 generation. These results suggest that pyrethroids may enhance the dispersal of this pest and stimulate the growth of offspring populations. Further experiments should be conducted to confirm these results and understand the mechanism of action of pyrethroids on B. distincta.
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来源期刊
African Entomology
African Entomology 生物-昆虫学
CiteScore
2.00
自引率
0.00%
发文量
17
审稿时长
6-12 weeks
期刊介绍: African Entomology (ISSN 1021-3589 – print / 2224-8854 – online) replaced the old Journal of the Entomological Society of Southern Africa in 1993. A single volume consisting of two issues (March and September) is published annually. The journal is indexed in all major abstracting journals African Entomology is a peer reviewed scientific journal that publishes original research articles and short communications on all aspects of entomology, with an emphasis on the advancement of entomology on the African continent.
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