12种化学杀虫剂对3种虫生真菌孢子萌发影响的研究

本文报道了１２种化学杀虫剂对１４株球孢白僵菌、１株金龟子绿僵菌和２株粉拟青霉分生孢子发芽的影响，发现种种上杀虫剂皆对孢子发芽有程度不同的抑制，浓度愈高，影响愈大，总的来看，对绿僵菌影响最大，白僵菌次之，对拟青霉影响最小，灭幼脲３号对白僵菌和绿僵菌孢子萌发抑制作用最小，是菌药混用的较好候选杀虫剂。

Impact of 12 Chemical Insecticides on Conidial Germination of 3 Entomogenous Fungi

In the present paper,the effect of 12 chemical insecticides on conidial germi-nation of 14 strains of Beauveria bassiana,1 strain of Metarhizium anisopliae,and 2 strainsof Paecilomzyces farinosus were tested.The result showed that all insecticides inhibited thegermination to a certain degree,and the inhibition was stronger as concentration increased.In general,the impact on M.anisopliae was the highest,and lowest on P,farinosus.Di-flubenzuron inhibited B.bassiana and M. anisopliae most poorly,suggesting a good candidatefor combined use of chemical and fungal insecticides,In addition,different strains of the samefungus were differently susceptible to an insecticide.Based on the above results,it is suggest-ed that strict experiment should be conducted before combining specific chemical and fungalinsecticides.