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采用不同剂量的22%毒·氯乳油(1125、1800及2250ml/hm2)进行甘蓝菜青虫防治试验,显示出较好的防效。建议用1200~1800ml/hm2药量在菜青虫低龄期防治。
Different doses of 22% toxic chlorine chlorine EC (1125, 1800 and 2250ml / hm2) for control of cabbage Pieris, showed good control effect. It is recommended to use 1200 ~ 1800ml / hm2 dose of cabbage worm prevention and treatment at a low age.