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杀蚜素是浅灰链霉菌杭州变种(Streptomyces griseolus var.hangzhouensis n.var.YANet FANG 1978)产生的杀虫抗生素,对蚜虫、螨类等害虫具有较强的触杀活性,而对天敌有选择性。多年大面积田间防治证明,由于杀蚜素在有效杀虫浓度内(10ppm)对天敌安全,喷药后天敌数量持续增加。杀蚜素的缺点是不杀卵,残效期短。为了探索利用杀蚜素的选择性,进行了本项试验研究,除室内(培养皿、养虫笼)观察外,在杀蚜素大面积防治棉蚜和柑桔螨类示范过程中,定果(或株)调查害虫主要天敌的消长情况。供试杀蚜素:系宜兴农药厂、桐乡、桐庐农药厂及本所微生物实验厂生产的0.15-0.4％杀蚜素工业品水剂。
The insecticidal antibiotic produced by Streptomyces griseolus var. Hangzhouensis n.var.YANet FANG 1978 has a strong contact activity against aphids, mites and other pests and is selective for natural enemies . Years of large-scale field control proved that the number of natural enemies continued to increase after pesticides were sprayed due to the insecticidal concentration (10 ppm) of aphid-killing insecticides. Aphid kill the disadvantage is not to kill eggs, residual short duration. In order to explore the use of the selectivity of aphids, this experiment was conducted. In addition to the indoor observation (petri dish and rearing cage), during the demonstration of large-scale control of aphids and cotton mites, (Or strain) to investigate the growth and decline of pests main natural enemies. For the test to kill aphid: Department of Yixing Pesticide Factory, Tongxiang, Tonglu Pesticide Factory and the experimental plant produced by the microbial 0.15-0.4% to kill aphids industrial liquid agent.