Control Experiment of Different Insecticides on Wheat Sawfly

Field experiments of different insecticides on wheat sawfly in wheat heading stage were carried out in 2010. The results showed that in the 3~4 instar larval height stage，when using chlorpyrifos 48% EC 600~900 g/hm2、phenthoate 50% EC 450~1 050 g/hm2、trichlorfon 98% crystal 750~1 500 g/hm2 and 4.5% Lambda-cyhalohrin EC 300~450 g/hm2，the control effect reached above 95% 16~40 h later. The variation analysis of the different processing methods were not significant.