性诱剂防治水稻二化螟效果的初步研究

Preliminary Study on the Effect of Applying Sex Pheromone to Control Chilo suppressalis for Rice

为了明确性诱剂对水稻二化螟的防效,利用水盆诱捕法,进行了水稻二化螟的田间防治试验。结果表明:以45盆·hm-2的密度设置性诱剂处理可有效控制二化螟的虫伤株率和水稻枯心率。1芯·盆-1处理的诱蛾量和防治效果低于2芯·盆-1处理,二者的防效分别为73.8%和80.7%,低于施药对照86.4%的防效。两个性诱剂处理的防效与施药对照具有显著性差异。

In order to determine the control effect of applying sex pheromone on rice Chilo suppressalis （Walker） ,the experiment on mass trapping with basin was conducted in field. The results showed that the rate of damaged rice plants by Chilo suppressalis and dead heart rate were effectively controlled by sex pheromone with 45 tray.hm-2. The control effect of 1 lures per basin was lower than 2 lures per basin, showing a significant difference , the control effects were 73.8 % and 80.7 % respectively,and both were lower than the effect of 86.4% by insecticide.