Research on isolating and screening one strain bacillus on kiwifruit canker disease

Twelve antagonistic strains, which inhibit the pathogen of kiwifruit cancer disease seriously, were screened out from rhizosphere soil. Activity of biologic inhibition was enhanced obviously, after purified by single-cell isolation. Especially, B17-4, B56-1 and B56-3 were obvious. The result of field trial showed that control effect could get to 88%, by getting rid of infected tissue with smearing, when the filtration of B56-3 fermentation was dilute 500 times.