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选取7种生物药剂对烟青虫(Helicoverpa assulta Guene)进行了田间药效试验,通过对烟株的抗虫性、烟叶经济性状等进行研究分析,结果表明:各供试药剂均表现良好,参试的7种生物药剂中以8 000 IU/μL苏云菌杆菌悬浮剂(100 g/667m2)和16 000 IU/mg苏云金杆菌可湿性粉剂(75 g/667m2)对烟青虫的防效最显著,药效的速效性、持效性接近供试菊酯类化学药剂,是云南文山烟区绿色烟叶生产防治烟青虫的首选生物防治剂。
Seven kinds of biological agents were selected to test the efficacy of Helicoverpa assulta Guene. Through the analysis of insect resistance and economic traits of tobacco leaves, the results showed that all tested agents performed well, Of the seven biological agents, the most effective control effect on tobacco budworm was 8 000 IU / μL suspension of Bacillus thuringiensis (100 g / 667m2) and 16 000 IU / mg of Bacillus thuringiensis wettable powder (75 g / 667m2) Efficacy of the effectiveness and effectiveness close to the test-pyrethroid chemicals, is the preferred Wenshan Yunnan green tobacco leaf production and control of tobacco budworm biological control agent.