[目的]旨在明确不同药剂对马铃薯蛴螬的防治效果及果实防效,并确定施药时期和用量。[方法]选择1%氯虫苯甲酰胺·氟氯氰菊酯颗粒剂、2%噻虫胺·氟氯氰菊酯颗粒剂、2%噻虫胺·嘧菌酯颗粒剂、0.5%噻虫嗪颗粒剂4种药剂,采用撒施法进行田间试验。[结果]在所选4种药剂中,2%噻虫胺·氟氯氰菊酯颗粒剂的防治效果最好,300、375、450 g a. i./hm^(2)的防治效果分别为89.00%、91.32%、92.87%。且有效成分450 g a.i./hm^(2)处理的果实防效达到91.84%。[结论]2%噻虫胺·氟氯氰菊酯颗粒剂具有快速、高效、对作物安全的特点,可用于马铃薯蛴螬的防治。
[Objective] The study was to explore whether antimicrobial activity of the antimicrobial peptides extracted from immunized Tenebrio molitor varied with different pathogens as inducers.[Method]By inducing T.molitor hungry larvaes to generate immune response via feeding with bacteria and with fungi or actinomycete post to pricking,the antimicrobial peptides extracts were obtained by grinding and centrifuging the cultures.Its antimicrobial activity against 26 pathogens was measured by bacteriostatic ring,and evaluated by trisection to four types and inhibitory spectrum.[Result]Both the antimicrobial activity and antimicrobial spectrum of the antimicrobial peptides extracts varied remarkably among different pathogens as inducers.[Conclusion]Bio-control used strains have obvious advantage in inducing the insect to express body fluid immunity material-antimicrobial peptides.
