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To screen high-efficiency,low-toxicity,and safe pesticides for controlling soil pests,experimental investigations of Abamectin + Chlorpyrifos 8% GR for controlling turf grubs were implemented according to Field Pharmacodynamic Test Standards of the Ministry of Agriculture. The results showed that as the active ingredient of Abamectin + Chlorpyrifos 8% GR is 1 625- 1 950 g / hm2,the control efficiency of turf grubs is 81. 43%-90. 46% 3-10 days after pesticide application,the readily availability and persistent effect achieve the ideal level,and it is safe for turf.
To screen high-efficiency, low-toxicity, and safe pesticides for soil pests, experimental investigations of Abamectin + Chlorpyrifos 8% GR for controlling turf grubs were implemented according to Field Pharmacodynamic Test Standards of the Ministry of Agriculture. The results showed that as the active ingredient of Abamectin + Chlorpyrifos 8% GR is 1 625-1 950 g / hm2, the control efficiency of turf grubs is 81. 43% -90. 46% 3-10 days after pesticide application, the adequate availability and persistent effect achieve the ideal level, and it is safe for turf.