基于螟黄赤眼蜂的稻田螟虫绿色防控效果评价

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中图分类号：S435.112；S476.3 文献标志码：A 文章编号：1001-411X（2026）02-0298-07

Evaluation of green control efficacy of Trichogramma chilonis Ishii against rice stem borers in paddy field

YUAN Xi， ZHANG Baoxin， GUO Yi， ZHAO Can， LI Dunsong （PlantProtectionResearch Institute，GuangdongAcademyofAgriculturalSciences/KeyLaboratoryofGrenPreventionandControl on Fruits and Vegetables in South China， Ministry of Agriculture and Rural Affairs/Guangdong Provincial Key Laboratory of High Technology for Plant Protection， Guangzhou ， China）

Abstract： 【Objective】 Rice stem borers are major pests threatening rice production. Their larvae bore into rice stems， causing symptoms such as dead hearts and white heads， which severely impact both yield and quality. To address thisagricultural production challenge，this study investigated the eficacy of green biological control using Trichogramma chilonis against rice borers，aiming toreduce chemical pesticide application and ensure safe rice production. 【Method】 This study focused on the use of unmanned aerial vehicles to submerge and release T. chilonis in the field， supplemented by physical and chemical control such as light and sexual induction， as well as ecological regulation. When the pest reached the control threshold， a comprehensive prevention and control technology system using green pesticides was used to study the effect of green prevention and control on rice stem borers and yield increase. 【Result】 The release of T. chilonis resulted in an 85% reduction in the stem borer population，significantly decreasing the number of rolled leaves and the dead heart rate in rice. The green control treatment based on T. chilonis achieved a yield of 6 688.95kg/hm2 ， compared to 6 073.05kg/hm2 in the conventional chemical pesticide treatment， representing an average increase of 10.14% 【Conclusion】 The T. chilonis-based green prevention and control can effectively suppress rice stem borer populations， increase the yield of rice，and is environmentally friendly， showing strong potential for widespread adoption.

Keywords： Trichogramma chilonis Ishi; Rice stem borer; Green prevention and control; Field effect; Rice yield

螟虫是水稻主要害虫类群之一，包括二化螟Chilosuppressalis、稻纵卷叶螟Cnaphalocrocismedinalis、大螟Sesamiainferens、台湾稻螟Chiloauricilius 和三化螟 Scirpophaga incertulas 等[。（剩余10083字）