2015年稻田人工释放赤眼蜂防治水稻二化螟应用技术试验

Application Tests on Controling Rice-stem Borer by Artificial Releasing of Trichogramma in 2015

开展了稻田人工释放赤眼蜂防治水稻二化螟的寄生和控害效果试验,结果表明:由于方正县2015年二化螟虫源基数低,二化螟危害轻,赤眼蜂防治田和农民自防区在水稻二化螟卵孵初期施用防效分别为70.15%和88%。经过大面积放蜂,培养自然种群,对于保持生态平衡,减少农药用量和施药次数,保护环境具有重要意义。

The tests of controling rice-stem borer by artificial releasing of trichogramma were made and the result indicated that the controlling rate were 70.15% and 88% on pest control field and farmland because of low Insect base and less pest of rice-stem borer in 2015. it had important consequences for maintaining the ecologicalbalance and reducing chemical consumption and administration times by placing bees large areas and cultivating natural populations.