Experiment on the Trunk Injection of Chloramine Phosphorus to Control Monochamus alternatus

In the control experiment of Monochamus alternatus larvae, 30% chloramine phosphorus EC, 2% avermectine EC were used for injecting into pine trunks, and in comperison with 40% omethoate EC. The results showed that 30% chloramine phosphorus EC was of better effects than 40% omethoate EC in control Monochamus alternatus larvae. According to the diameter of pine trunk in chest height, 30% chloramine phosphorus EC injecting dose 0.7 mL/cm, the control effect reached 95.10% in 30 days, meanwhile the control effect of 2% avermectine EC was only 32.84%.