摘要
采用树干注射 2 5%灭幼脲 3号悬浮剂、 10 %灭百可乳油、 50 %甲胺磷乳油、 2 0 %速灭杀丁的 50倍液 ;喷洒 2 5%灭幼脲 3号悬浮剂 2 50 0倍液、 10 %灭百可乳油 4 0 0 0倍液防治中国绿刺蛾。树干注射的 4种药剂的杀虫效果均达到极显著水平 ,其中以速灭杀丁效果最佳 ,3d死亡率达96 .7% ,4 d死亡率达 10 0 % ;喷雾防治的两种药剂杀虫率 3d均达 10 0 %
The application of tree-injection of TH6038 susponsion(25%),Latex(10%),methamidopno Latex(50%)and 1/50 of Fenralerate (20%),and of spraying 1/2 500 of TH6038 supspension (25%),1/4 000 of springlac (10%) for protection of Parasa sinica M. was carried out in this experiment.The insect-killing effeets of 4 insecticides by tree-injection were all very significant,and the best inectieide was Fenralerate,which resulted in percentage dead to 96 7% in 3d and to 100% in 4d.The insect-killing rate of 2 insecticides by spraying come to 100% in 3d,contrasted with control,this effect was very significant.
出处
《林业科技》
北大核心
2000年第5期26-28,共3页
Forestry Science & Technology
