Control mechanism of phytophthora blight of chilli pepper by anaerobically digested pig slurry - The roles of ammonium and humic acid in biogas slurry INHIBITION OF METALAXYL ON THE OOSPORE PRODUCTION OF PHYTOPHTHORA BOEHMERIAE Effects of illumination, moisture and medium on oospore production of Phytophthora boehmeriae Overwintering survival rate of Phytophthora sojae oospores in soils in Heilongjiang Province Pathogenic infection of the secondary zoospores of Plasmodiophora brassicae Woron Effects of soil environment on activation of oospores of Phytophthora sojae OOSPORES OF PHYTOPHTHORA BOEHMERIAE OVERWINTERED IN SOIL AS A INFECTION SOURCE OF COTTON BOLL ROT DISEASE Distribution of mating type and metalaxyl-resistance of Phytophthora infestans in Fujian STUDIES ON THE SPLASH DISPERSAL OF PHYTOPHTHORA CACTORUM OF AMERICAN GINSENG