Bioassay of different strains of Beauveria bassiana and Metarhizium anisopliae to Anoplophora chinensis adults

CAI Shouping,et al.(Fujian Academy of Forestry,Fuzhou 350012,China)  

Susceptibility of A.chinensis to 4 Metarhizium anisopliae strains and 1 Beauveria bassiana was studied to screen virulent strains against Anoplophora chinensis adults.The inoculum amount was not significantly different among different strains after the adults crawled on spores.The dying trend of A.chinensis adults was the same after inoculation.The peak of the death was about 9～15 dpi(days after inoculation).The result of analysis of death rate-time probit module showed LT50 of MaYTTR04,MaZPTR01,B08 were 9.14,9.48,9.67 dpi respectively,shorter than the other two strains.The muscardine cadaver rates caused by of MaZPTR01 and MaYTTR04 were 53.3%,40.0% respectively,higher than the other stains.That meant MaYTTR04,MaZPTR01 showed high virulent against A.chinensis adults and could be used as a potential biocontrol agent for A.chinensis adults.

【Key Words】： entomogenous fungus Anoplophora chinensis bioassay median lethal time(LT50) sporulation
【Fund】： 福建省林木种苗科技攻关二期项目“光皮桦西南桦遗传改良和培育技术研究”;; 福建省发改委2006年项目“绿僵菌优良菌株筛选与生产工艺规范化技术研究”
【CateGory Index】： S769

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