The Study Efficacy of Biorational Pesticides in Controlling White Grubs on Golf Courses
LI Cun-huan;GUO Jing-yi;ZHANG Xin;NONG Xiang-qun;CAO Ming-zhang;LI Guang-ze;KONG Jian;LIU Zhi-gang;Golf College,Shenzhen University;Institute of Plant Protection,CAAS/Key Laboratory of Pest Management in Crops,Ministry of Agriculture;Shenzhen Noposion Agrochemicals Company Limited;College of Medical,Shenzhen University;
White grub( Anomala cupripes Hope) larvae of the major soil pests,directly affect the quality of golf course turf and sport performance. Nowadays control of white grub larvae in golf course generally uses a great deal of high toxic,high residual chemical pesticide,causing serious pollution of environment. The experiment used 3 biorational pesticides of 5% cyfluthrin EC,3% emamectin SC,25% tefluthrin-acetamiprid micro-emulsion and a chemical of 30% chlorpyrifos emulsion in 3 Shenzhen golf courses with residential and large area test. The results show that 4 pesticides can effectively control lawn grubs. Among them,timely effect with 5% cyfluthrin EC is the best,average decline rate reached 74. 7% and control effect was 80. 3%,and is proposed to be developed. Control efficacy of 25% tefluthrin-acetamiprid and 3% emamectin SC were similar to that of 30% chlorpyrifos emulsion. As their environment-friendly effect,these biorational pesticides are still proposed superior than 30% chlorpyrifos emulsion.