Abstract:

strains, isolated from the cadaver of Pantana phyllostachysae infected by Beauveria bassiana,were studied on their colony morphology, growth, sporulation and germination; and their capabilities for controlling Pantana phyllostachysae indoors and outdoors were compared with 4 strains of Beauveria bassiana of Dendrolimus punctatus. The results indicated that the strains had significant difference in their cultural characters, virulence and specialization. The 8 strains were highly virulent to Pantana phyllostachysae and two superior strains, BP4 and BP1, were obtained. The mycelium of the two strains grew fast and could produce large amount of spores with high virulence. The superior strain BP4 was applied in mass production, with 238.7×10⁸·g^-1 sporulation on the average, 96.2% germination and 92.3% efficiency for controlling Pantana phyllostachysae in bamboo forest.

Key words: Pantana phyllostachysae, Beauveria bassiana, Strain screening, Application