五种生物农药对温室蔬菜烟粉虱的田间防效

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中图分类号：S436.3文献标识码：A 文章编号：0488-5368（2025）07-0078-05

Field Efficacy of Five Biological Pesticides Against Bemisia tabaci in Greenhouse Vegetables

ZHOU Chengsong'，ZHANG Yihe'，PAN Weiping'，XIAO Yao' ，HUANG Mingliang' ，MA Haiyun ， Ayijiamali ⋅⋅ Kudureti'，MAO Liang'，ZHOU Junhui² （1.Turpan Agricultural Technology Extension Center，Turpan，Xinjiang 838Ooo，China; 2.InstituteofPlantProtection，XinjiangAcademyofAgricultural Sciences，Urumqi，Xinjiang83oo91，China）

Abstract： To identify efective biological pesticides for managing Bemisia tabaci in greenhouse vegetables and to reduce the pest’sresistance to conventional chemical agents，a field trial was conductedusing five biological pesticides and a commonly used chemical pesticide， 5% acetamiprid emulsifiable concentrate（EC），on greenhouse-grown peppers. The results showed that 0.3% azadirachtin EC demonstrated the highest control efficacy at 60.86% on the third day after application，followed by the 0.1% veratrum rhizome extract soluble agent，which achieved 55.19% effcacy. By the fifth day，the efficacy of azadirachtin EC declined to 55.32% ， and that of the veratrum extract decreased to 50.21% . On the seventh day，the control efficacy of azadirachtin EC remained relatively stable at approximately 51% ，while all other biological agents fell below 50% in effectiveness. These results suggest that，during the early stages of B .tabaci infestation and under conditions of low pest density， 0.3% azadirachtin EC can be recommended as the primary control agent，with 0.1% veratrum rhizome extract using as an alternative in rotation strategies.

Key words：Bemisia tabaci；Biological pesticide；Greenhouse vegetable；Field efficacy

烟粉虱Bemisiatabaci（Gennadius）半翅目（He-miptera）粉虱科（Aleyrodidae）刺吸式口器害虫，最早于17世纪末在希腊烟草上发现。（剩余6163字）