| Abstract: The investigation of Colletotrichum coccodes on potato in the east of Hebei province was carried out aiming at the present situation that the occurrence of Colletotrichum coccodes on potato was becoming more and more universal, which restricted the development of vegetable industry. The results showed that Colletotrichum coccodes on potato was common and serious in Yutian county, Fengrun district, Fengnan district of Tangshan city, and Changli county of Qinhuangdao city, and the incidence rate was around 15%. The onset time of Colletotrichum coccodes on potato began in the mid to late May (after potatoes budded), and the incidence reached the peak in mid June. Accordingly, the comprehensive prevention and control measures were formulated, such as the implementation of 5 years in crop rotation, rational fertilization, bio-chemical control, to prevent and control the occurrence and spread of Colletotrichum coccodes on potato in the east of Hebei province. |