Tests on Tomato Aphid Control with 5% Acetamiprid·High Chloride EC

In recent years,the tomato aphids occurred seriously in Shanxi.It not only harm to plants,but also spread a variety of viral diseases.In order to effectively control tomato aphid and screen the ideal pesticide,tests are conducted with 5% acetamiprid·high chloride EC,3% acetamiprid WP,as well as 4.5% Bata-Cypermethrin EC.The results show that,1 days after spray pesticide,the control effect of 675 ml/hm2 5% acetamiprid·high chloride EC was 85.73%;3 days after application,the effect was up to 96.41%;7 days after spray pesticide,the control effect was 91.35%.The control effect of 5% acetamiprid·high chloride EC 600 ml/hm2 is better than 3% acetamiprid WP.Thus,5% acetamiprid·high chloride EC was fit for control tomato aphid,and the best pesticide application was 600~675 ml/hm2.