几种绿色方法防治大豆蚜效果研究

Study on efficiency of several green control methods on Aphis glycines

通过几种绿色防控方法田间试验,测定其对大豆蚜防治效果。结果表明,生物杀虫剂阿维菌素对大豆蚜防效良好,与化学杀虫剂吡虫啉防效接近,白僵菌有一定防效但起效缓慢。施倍丰和激健增效剂均对吡虫啉和溴氰菊酯防治大豆蚜有增效作用,吡虫啉与施倍丰或激健增效剂混用均可减量40%,溴氰菊酯与施倍丰或激健增效剂混用可减量40%。吡虫啉种衣剂可在全年降低大豆蚜发生量,发生高峰期显著降低大豆蚜量。黄板在大豆蚜发生高峰期有一定防效,发生后期防治效果降低,对大豆无显著增产效果。

The effects of several green control methods on Aphis glycines were tested by field experiments.The results showed that the biological insecticide abamectin had good control effect on A.glycines,the control effect was equivalent to that of the chemical insecticide imidacloprid.Beauveria bassiana had certain control effect,but the effect was slow.Both Shibeifeng synergist and Jijian synergist had synergistic effects on imidacloprid and deltamethrin in the control of soybean aphid.Both lmidacloprid and deltamethrin could be reduced by 40%when mixed with Shibeifeng or Jijian synergist.Imidacloprid seed coating could reduce the population of soybean aphid throughout the year,and significantly reduced the population of soybean aphid at the peak period.The yellow sticky traps had certain control effect at the peak period of soybean aphid occurrence,but the effect was low at the later period.The use of yellow sticky traps had no significant effect on soybean yield.