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基于Bacillus thuringiensis的生物杀虫剂会影响Euborellia annulipes在钻石背幼虫上的掠食

Gilmar da Silva Nunes¹, Joice Mendonça de Souza², Dagmara Gomes Ramalho²

¹Instituto Federal Goiano, Rodovia Sul Goiana, km 01, Zona Rural, CEP, Rio Verde, GO, 75901-970, Brazil. gilmarsilvanunes@gmail.com.

Environmental science and pollution research international

|July 18, 2023

概括

细菌 thuringiensis (Bt) 生物杀虫剂改变了钻石背的耳掠食. 耳更喜欢未感染的猎物,这表明Bt会影响捕食者与猎物的相互作用和综合性害虫管理策略.

科学领域:

昆虫学昆虫学是一门学科.
虫害管理虫害管理虫害管理
昆虫生态学昆虫生态学

背景情况:

耳 (Dermaptera: Anisolabididae) 和虫病原体 (如Bacillus thuringiensis (Bt)) 之间的相互作用尚未得到充分了解.
基于Bt的生物杀虫剂广泛用于对抗诸如Plutella xylostella (Lepidoptera:Plutellidae) 等害虫,该害虫对Bt.表现出耐药性.

研究的目的:

研究基于Bt的生物杀虫剂对Euborellia annulipes (环腿耳) 对Plutella xylostella的掠食行为的影响.
为了确定Bt感染是否影响耳的食偏好和捕食效率.

主要方法:

第四阶段的Plutella xylostella幼虫被暴露在Dipel®WG和XenTari®WG生物杀虫剂中.
在不同猎物密度的无选择和自由选择条件下评估了Euborellia annulipes的掠食性.
分析了功能反应和处理时间,以量化掠食动态.

主要成果:

在没有选择和自由选择的情景中,E. annulipes与未感染的幼虫相比,消耗了较少的Bt感染的P. xylostella幼虫.
耳的掠食率随着猎物密度的增加而增加,表现出不受Bt感染影响的II型功能反应.
对Bt食猎物的处理时间减少了,而最大的掠食率增加了.

结论:

基于Bt的生物杀虫剂显著改变了E. annulipes的食偏好和对P. xylostella的捕食行为.
了解这些耳-Bt相互作用对于开发有效的综合性害虫防治策略至关重要.

关键词:

细菌 thuringiensis 这种疾病.耳的耳是什么意思食偏好食偏好功能性的反应反应.综合性害虫防治综合性害虫防治这种植物名为Plutella xylostella.

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