【摘要】 【目的】本研究旨在明确成都地区番茄主要昆虫群落结构及主要害虫和天敌发生规律。【方法】于2015-2016年采用五点调查法系统调查研究了成都地区番茄主要昆虫群落结构及主要害虫和天敌发生规律。【结果】成都地区番茄田间节肢动物主要包括昆虫纲8目19科37种及蛛形纲2目4科5种共42种,危害较重的害虫主要以粉虱、蛾类及朱砂叶螨为主,天敌资源以捕食性蜘蛛为主。粉虱在2015年7月22日及2016年8月5日分别达到最大值(15和60头/株);捕食性蜘蛛在2015年及2016年的数量变化与番茄主要害虫变化规律趋于一致。【结论】本研究明确了成都地区番茄主要害虫及优势天敌种类及其发生规律,为有效控制害虫发生提供理论依据。更多还原

【Abstract】 【Objective】The study aimed to understand the occurrence dynamics of pests and natural enemies on tomato in Chengdu. 【Method】The five point sampling method was used to finish the investigation and analysis in 2015 and 2016,respectively. 【Result】There were 42 species of insects,which were included in 19 families of 8 orders belong to Insecta and 4 families of 2 orders belong to Arachnida,respectively. The dominant pests on tomato in Chengdu were whiteflies,moths and Tetranychus cinnabarinus,the whiteflies reached its maximum values on July 22 th,2015 and August 5 th,2016,which reach to 15 and 60 per plant,respectively. Results showed that the occurrence dynamics of predacious spiders had a strong relationship with the dominant pests on tomato in Chengdu.【Conclusion】the occurrence dynamics of pests and natural enemies on tomato in Chengdu were understood,which could help us control the pests effectively.更多还原