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Field Efficacy Test of Biological Insecticide on Ostrinia Furnacalis
Author(s): 
Pages: 63-64
Year: Issue:  3
Journal: Liaoning Agricultural Sciences

Abstract: 选用3种生物农药对玉米螟进行田间药效试验,结果表明Bt、阿维菌素和白僵菌均能达到较好的防治效果和持效性,收获期的田间防效分别达到80.8%、77.8%和73.2%,蛀孔减退率分别为79.4%、73.5%和73.2%,大喇叭口期是玉米螟的最佳防治时期。建议生产中应采用以生物防治为主,在玉米螟大发生时结合低浓度的化学防治的策略,保证玉米生产安全。
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