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释放东亚小花蝽对三种设施蔬菜蓟马的防治效果

2018-02-13侯峥嵘李锦李金萍孙贝贝尹哲王俊侠郭喜红

湖北农业科学 2018年22期

侯峥嵘 李锦 李金萍 孙贝贝 尹哲 王俊侠 郭喜红

摘要:评价在日光温室中释放东亚小花蝽[Orius sauteri (Poppius)]对辣椒、茄子、黄瓜3种作物上蓟马的防治效果。结果表明,以2头/m2的密度释放东亚小花蝽,每周释放1次,连续释放3次,14 d后东亚小花蝽对蓟马表现出良好的防效,对辣椒、茄子、黄瓜蓟马的防效分别为95.82%、88.58%、55.94%;辣椒、茄子上东亚小花蝽与对照药剂乙基多杀菌素相比没有显著差异,而黄瓜上东亚小花蝽与对照药剂乙基多杀菌素相比具有显著差异。在3种作物的对比上,东亚小花蝽对辣椒蓟马防治效果要优于茄子和黄瓜,三者间具有显著差异。

关键词:东亚小花蝽[Orius sauteri (Poppius)];蓟马;设施蔬菜;防治效果

中图分类号:S476.2         文献标识码:A

文章编号:0439-8114(2018)22-0067-03

DOI:10.14088/j.cnki.issn0439-8114.2018.22.019           开放科学(资源服务)标识码(OSID):

Abstract: The effects of releasing Orius sauteri(Poppius) in solar greenhouse of thrips on three crops:Pepper,eggplant and cucumber were evaluated. The results showed that releasing O. sauteri with a density of 2 heads/m2 plant three times (once a week) could obtain good thrips control over several weeks,and 14 days later the control effect on pepper,eggplant and cucumber were 95.82%,88.58%,55.94%,respectively. On pepper and eggplant,it was no extraordinary differences in the control effects between beneficial insect and spinetoram. Meanwhile on cucumber,it showed extraordinarily different control effects between beneficial insect and spinetoram. O. sauteri provided better control on pepper than on eggplant and cucumber.

Key words: Orius sauteri (Poppius); thrips; greenhouse vegetables; control effect

东亚小花蝽[Orius sauteri (Poppius)]是中国北方最常见的小花蝽种类[1],其食性广,成虫和若虫均可捕食蓟马、蚜虫、粉虱、叶蝉、鳞翅目(Lepidoptera)昆虫卵和初孵幼虫、叶螨等[2],是农田、设施蔬菜和林木果园中重要的捕食性天敌昆虫之一。近年來国内研究者对其生物学特性、捕食功能、室内饲养等进行了相关研究。捕食功能方面,张安盛等[3]发现东亚小花蝽在设定的密度下对西花蓟马的日捕食量达33.33头,理论日捕食量可达51.28头,表明东亚小花蝽对西花蓟马有着较强的捕食能力;孙晓会等[4]研究表明东亚小花蝽对西花蓟马的捕食喜好大于二斑叶螨;武予清等[5]研究了东亚小花蝽对温室内常发生的4种害虫棉蓟马、烟粉虱、朱砂叶螨、甘蓝蚜的捕食作用,发现东亚小花蝽对朱砂叶螨的捕食作用最强,棉蓟马和甘蓝蚜居中,而对烟粉虱最弱。……

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