1986—89年.通过病原菌分离、培养.纯化和接种试验,结合形态、生物学特性,菌体蛋白质的聚丙烯酰胺凝胶盘状电泳和扫描等,鉴定出了四川柑桔脚腐病的病原是疫霉属寄生疫霉、柑桔褐腐疫霉、棕榈疫霉、恶疫霉、甜瓜疫霉等.其中寄生疫霉所占比例最大.引起柑桔脚腐病的主要种寄生疫霉的生长发育温度为10—35℃,最适温25—28℃;pH4—9之间 1986 - 89. Pathogen isolation, culture, purification and inoculation experiments, combined with morphological, biological characteristics, polyacrylamide gel electrophoresis and scanning of bacterial proteins, identified the root cause of foot rot in Sichuan citrus Phytophthora parasitic Phytophthora infestans, citrus Phytophthora infestans, Phytophthora capsici, Phytophthora capsici, Phytophthora meliloti, etc. Among them, Phytophthora infestans accounted for the largest proportion of the main species causing citrus foot rot Phytophthora infestans Growth and development temperature of 10-35 ℃, the optimum temperature 25-28 ℃; pH4-9 between