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通过观察、测定６株毒力不同的球孢白僵菌菌株在ＳＤＡＹ培养基平板上的萌发行为及萌发参数发现，白僵菌萌发孢子具有几种萌发形态，单芽管萌发型、双芽管萌发型、三芽管萌发型及拟附着孢型。对马尾松毛虫幼虫毒力的高低，与孢子萌发中时（ＧＴ５０）相关极显著（ｒ＝０．９２４０），与单、双芽管孢子比例（Ｃ１／Ｃ２）（ｒ＝０．８５９８）、及双芽管孢子的长芽管与短芽管平均长度的差值（Ｘ１－Ｘ２）（ｒ＝０．８３７６）均相关显著。菌株毒力与萌芽管平均长度及萌芽管整齐度（ＣＶ）相关不显著。
Through the observation and determination of the germination behavior and germination parameters of 6 strains of Beauveria bassiana with different virulence on SDAY medium, the germination of B. bassiana spore has several germination patterns, single bud germination type, double bud tube Germination, germination and germination of three germ tube type to be attached. The virulence of larvae of Dendrolimus punctatus was significantly correlated with the GT50 (r = 0.9240), and with single and double shoot spores (C1 / C2) (r = 0.8598) (X1-X2) (r = 0.8376) were significantly correlated with the average length of the sprouts and the sprouts of the spores. The virulence of strain was not significantly correlated with the average length of germination tube and the uniformity of germination tube (CV).