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通过在山东莱阳西兰花田开展生物食诱剂监测、诱杀试验,表明生物食诱剂可诱杀西兰花田夜蛾科主要害虫的雌、雄虫,其中,诱杀棉铃虫的雌雄比为1.25∶1。药后15 d,夜蛾科害虫卵量减退率为83.65%,校正防效为72.20%;幼虫虫口减退率为80.09%,幼虫的校正防效为62.81%。处理区幼虫量与对照区差异显著,生物食诱剂对夜蛾科害虫有较好的防治效果。
Through the monitoring and trapping experiments on the bio-food attractants in the orchid field of Laiyang in Shandong Province, it is shown that the bio-food attractant can kill the female and the male pests of the major insect pests of the family Noctuidae in the broccoli field. The female-male ratio of the lure-trap cotton bollworm is 1.25: . On the 15th day after treatment, the reduction rate of eggs of the armyworm was 83.65% and the control effect was 72.20%. The reduction rate of larvae was 80.09% and that of larva was 62.81%. The amount of larvae in the treatment area was significantly different from that of the control area, and the biofuels attractant had better control effect on the nymphs.