生态学杂志2026，Vol.45Issue(5)：1569-1576,8.DOI:10.13292/j.1000-4890.202605.014
阿维菌素对烟粉虱MED隐种天敌烟盲蝽的安全性评价
Safety evaluation of abamectin on Nesidiocoris tenuis,a natural enemy of the MED cryptic species of Bemi-sia tabaci
摘要
Abstract
The Mediterranean(MED)cryptic species of Bemisia tabaci(Gennadius)is a major pest in agricultural production.Abamectin is widely used as a key chemical agent for controlling B.tabaci.To clarify the ecological safety of abamectin to Nesidiocoris tenuis(Reuter),a key natural enemy of B.tabaci,we comprehensively assessed its toxicity to different developmental stages of these two species using the leaf-dipping method,agar moisture meth-od,as well as a combination of contact toxicity and food chain transfer method.The safety of abamectin to N.tenuis was evaluated using safety factor and the benefit-harm toxicity ratio.The results showed that the toxicity of abamec-tin decreased with increasing insect age.The first instar nymphs of B.tabaci were the most sensitive(LC50=0.53 mg·L-1),while the female adults were the least sensitive(LC50=6.05 mg·L-1).Compared to B.tabaci,N.ten-uis was less sensitive to abamectin,with an LC50 of 55.25 mg·L-1 for female adults,indicating that abamectin has low toxicity against female adults of N.tenuis.Under the recommended concentration,the female adults of N.tenuis held the highest safety factor(41.44-55.25)in the field,and the benefit-to-harm toxicity ratio reached 9.13,which was much higher than that of the nymphs.Therefore,abamectin demonstrates a high level of safety toward adult N.tenuis,making it a preferred chemical agent for integrated pest management that combines N.tenuis with chemical pesticides against B.tabaci.关键词
烟粉虱/烟盲蝽/阿维菌素/安全性评价/选择性毒性/绿色防控Key words
Bemisia tabaci/Nesidiocoris tenuis/abamectin/safety evaluation/selective toxicity/green prevention and control引用本文复制引用
孔娇,万秀娟,张薄,付学峰,胡涛,杨显鎏,张栩铭,张晓明,张金龙..阿维菌素对烟粉虱MED隐种天敌烟盲蝽的安全性评价[J].生态学杂志,2026,45(5):1569-1576,8.基金项目
"兴滇英才支持计划"青年人才专项(YNWRQNBJ2020291)、云南省基础研究计划项目(202201AT070269)和云南省中青年学术和技术带头人后备人才项目(202105AC160071)资助. （YNWRQNBJ2020291）
