毕节市马铃薯晚疫病综合防治技术

Integrated Control Techniques for Prevention and Control of Potato Late Blight in Bijie

马铃薯晚疫病是毕节市马铃薯生产上对产量威胁最大的重要流行性病害,常年造成产量损失20万t左右。通过开展一系列晚疫病控制技术研究试验,结合马铃薯晚疫病发生规律、防治工作经验等,探索出一套适合毕节市生态条件的马铃薯晚疫病综合防治技术。即:选栽抗病或耐病性强的品种,搞好农业防治,进行种薯处理,大田期加强病情监测,根据监测结果采取药剂防治,有效减轻病害发生程度,推进马铃薯产业持续健康发展。

Potato late blight, caused by Phytophthora infestans（Mont.）de Bary, is the most devastating disease for potato production in Bijie Guizhou, and the annual lose is usually about 200 000 t. Based on late blight control experiment, combined with prevention and control experience and epidemic pattern of this disease, integrated techniques for late blight prevention and control, which is particulady suitable for Bijie ecological conditions, are put forward, that is the selection of resistant cultivar, implementation of agronomic control, treatment of seed tuber, monitoring and early warning of late blight in field, and application of fungicide according to late blight prediction. In this way, the late blight threat may be alleviated and therefore, health development of potato industry may be achieved.