摘要
云雨蒙自石榴干腐病（ZythiaversonianaSacc）以菌丝体和分生孢子在僵果、干腐果及其他感病部位越冬。翌年经风雨、昆虫和人为活动在果园广为传播。石榴花、幼果、果实期均可感病发病，萼筒花丝最易感病。果实发病率达20％～30％，重者达40％～50％。采取综合治理措施，其中重要的是在首次连续降雨前刮去干花丝、套袋和树冠多次喷清水，提前水解、淡化干花丝、伤口渗出液的微酸性度，可控制该病的发生危害，危害率由原来的20％～30％现降为2．7％～3．2％。
Zythia versomana Sacc overwinters in mummified or decay fruits and other infected parts in the form of mycelia or conidia.They are disseminated by wind, rain,inasets or human beings the next year.The flowers and young fruits of pomegranate,especially its calyx tubes and filaments,are susceptible to the infechon of the disease. Its incidene on the fruit averages 20% ~ 30%. Losses of 40% ~ 50% may occur during its outbreak.Removal of the filaments before the first successive rain,bagging and repeated spray of the tree crowns with water can successfully control the disease.In the present study, such integrated measures decreased the losses caused by the disease from 20% ~ 30% to 2.7% ~ 3 .2%.
出处
《西南农业大学学报（自然科学版）》
CSCD
1999年第6期551-555,共5页
Journal of Southwest Agricultural University
基金
云南省和中国科学院科技合作资助!970605
关键词
石榴
干腐病
生物学
生态学
云南蒙自
punica granatum
dry rot
biology
ecology
Yunnan Mengzi
