花生根腐病的发生与综合防治技术研究进展OA

Peanut root rot is a soil-borne fungal disease of peanut,which is a worldwide disease on peanut.It occurs all over our country,cau-sing serious economic losses and restricting the development of peanut industry.This paper introduced the taxonomic status of peanut root rot pathogen and its cultural characteristics on potato glucose agar medium.The morphological characteristics of two types of conidia from the pathogen were summarized.In this paper,the symptoms of peanut root rot in the field and its pathogenesis were introduced in detail.The agri-cultural control measures of peanut root rot were summarized from seed screening,rational rotation and field management.The main fungicides used to control peanut root rot were summarized from the aspects of seed coating,soil treatment and fungicide spraying.It is suggested that the control of peanut root rot should be based on the agricultural control measures aimed at reducing the source of pathogen and cutting off the route of transmission,followed by carrying out chemical control measures,i.e.seed coating and fungicide spraying.