METHOD FOR OBTAINING FUNGICIDE (VARIANTS) Russian patent published in 2003 - IPC

FIELD: microbiological industry, agriculture. SUBSTANCE: the method deals with the ways to produce biological means for plant protection to be used for fungicidal suppression of plant mycosis agents. According to the first variant, one should cultivate fungus-phytopathogen or several fungi- pathogens in mixed form in fermenters upon liquid nutritive medium, after separating biomass against cultural liquid, the latter should be purified by microfiltration at equipment of 15- 100 thousand D resolving power, then obtained solution of biologically active substances is concentrated due to dialysis at equipment of 5-10 A resolving power. As for the second variant, the mentioned operations are carried out separately for each culture of fungi-phytopathogens, and in conclusion, concentrates of their biologically active substances should be mixed up. The innovation in question enables to increase virulence of micropreparations, regulate the performance of both quantitative and qualitative pressing upon econiche's inhabitants by imitating soil fungistasis. EFFECT: higher efficiency. 2 cl, 3 ex