Impacts of 6 chemical pesticides on spore germination,mycelial growth and sporulation of Beauveria bassiana were determined under laboratory conditions,and control effects of the mixed B.bassiana and highly compatible pesticides with 10 fold dilution concentrations against Trialeurodes vaporariorum were investigated.The results showed that B.bassiana had the highest compatibility with imidacloprid 10％ WP,but worse compatibility with bifenthrin 2.5％ EC and beta-cypermethrin · buprofezin 20％ EC buprofezin.The inhibitory rates of imidacloprid 10％ WP at 10 fold dilution concentration on spore germination and mycelial growth were 12％ and 3.38％,respectively,and the sporulation was 1.94 × 106 conidia/mL.There were significant differences among three test groups for synergistic control.Corrected control effect of the mixture of B.bassiana and imidacloprid 10％ WP was 85.19％,higher than that using B.bassiana or imidacloprid 10％ WP alone and maintained above 80％ after three days of application.Therefore,the mixture of the entomopathogenic fungi and the low concentration pesticides was synergistic for the whitefly control.%本试验测定6种常用杀虫剂对球孢白僵菌孢子萌发、菌丝生长和产孢量的影响,并选取相容性高的杀虫剂在10倍稀释浓度下与球孢白僵菌复配对温室白粉虱进行防治.结果表明,球孢白僵菌与10％吡虫啉WP的相容性最高,而与2.5％联苯菊酯EC和20％高氯·噻嗪酮EC相容性较差,在10倍稀释浓度下10％吡虫啉WP对孢子萌发和菌丝生长的抑制率分别为12％和3.38％,产孢量为1.94× 106个/mL.对白粉虱协同防效试验中,3个处理间存在显著差异,复配药剂的防效最高能达到85.19％,在防治3d后一直维持在80％以上,高于单独使用球孢白僵菌制剂和10％吡虫啉WP的防效.因此,在温室白粉虱的防治过程中,可利用生防真菌制剂与低浓度的化学杀虫剂复配,从而达到增效作用.
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