生物食诱剂对山东省莒南县花生田夜蛾科成虫监测与诱杀效果的初步评价

Preliminary evaluation of the monitoring and trapping efficacy of biological food attractant on Noctuidae adults in peanut fields in Junan county,Shandong province

在山东莒南县花生田利用生物食诱剂和性诱剂对常见夜蛾科害虫成虫进行虫情监测,并对食诱剂防控夜蛾科害虫的效果进行研究。食诱剂和性诱剂监测结果表明,花生田棉铃虫、甜菜夜蛾、斜纹夜蛾、黄地老虎、小地老虎等夜蛾科害虫成虫的发生高峰期均出现在7月12日;性诱剂仅能诱捕到雄性成虫,食诱剂可同时诱捕到雌性和雄性成虫,其诱捕到的棉铃虫、甜菜夜蛾、斜纹夜蛾、地老虎雌雄比分别为1∶0.68、1∶5、1∶3和1∶1.4。食诱剂撒施、化学防治、食诱剂诱捕盒技术与化学防治组合处理后第10天花生叶片受害率分别为9.51%、6.73%、6.24%,百株虫量较对照降低68.68%、76.39%、85.87%,食诱剂诱捕盒技术与化学防治组合应用防控效果优良。

The occurrence dynamic of Noctuidae adults were monitored by using biological food attractant and sex pheromone in the peanut fields,Junan county,Shandong province.And the control efficacy of biological food attractant on noctuid moth was evaluated.The results showed that the peak day of occurrence of Helicoverpa armigera,Spodoptera exigua,S.litura,Agrotis segetum,A.ipsilon was 12th July when monitoring by both food attractant and sexual attractant.Compared with the sexual pheromone only trapping male adults,the ratio of female to male of H.armigera,S.exigua,S.litura and Agrotis spp.trapped by food attractant was 1∶0.68,1∶5,1∶3 and 1∶1.4,respectively.The damage rates of leaves by noctuid insects in the treatment of food attractant splashing,chemical insecticides application and the combined food attractant in trap box with chemical insecticides were 9.51%,6.73%and 6.24%,respectively,and the larval reduction were 68.68%,76.39%and 85.87%,respectively,on 10th day after treatment.The control efficacy of the combined food attractant in trap box with chemical insecticides was the best.