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承德市北部的丰宁、围场两县年种植马铃薯30余万亩,年产种薯、商品薯4亿余公斤,冬季储薯0.5亿公斤左右,是全国四大马铃薯生产基地之一。近年来,由于马铃薯块茎腐烂线虫的危害,1994年造成储薯损失5％～7％,为害严重的薯窖造成损失高达20～30％,根据目前所检索到的资料来看,此种线虫广泛分布于亚洲、欧洲、美州及非洲马铃薯种植区,寄主范围广泛,对马铃薯储藏都构成不同程度的危胁。经过两年来的工作,摸索出发生规律与防治措施如下。
Fengning in the north of Chengde City, paddock two counties planted more than 30 acres of potatoes, with an annual output of seed potatoes, more than 400 million kilograms of potato, potato staple in winter about 50 million kilograms, is one of the four major potato production base. In recent years, due to the damage of potato tuber rotting nematode, the loss of potato in 1994 was 5% -7%, and the damage of the serious potato pit was as high as 20-30%. According to the data retrieved so far, this kind of nematode Distributed in Asia, Europe, the United States and Africa potato planting areas, host a wide range of potato storage pose varying degrees of threat. After two years of work, to explore the occurrence of the law and prevention measures are as follows.