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近年来,马铃薯晚疫病在本县持续发生,严重影响了马铃薯生产的健康发展。据资料统计,2005～2009年,全县年平均种植马铃薯1 046.4 hm2,晚疫病常年发生面积700 hm2,发病普遍率和严重度平均为32.5%和12.5%,有的甚至绝收,常年直接减产137 t。其中又以热务沟片区最为严重,普遍率和严重度平均为45%和20.2%。马铃薯晚疫病属冷湿
In recent years, late blight of potato continues to occur in this county, seriously affecting the healthy development of potato production. According to statistics, from 2005 to 2009, the county planted an average of 1 046.4 hm2 of potato and 700 hm2 of late blight. The prevalence and severity of the disease averaged 32.5% and 12.5%, respectively, t. Among them, the hot-service area is the most serious, with an average of 45% and an average of 20.2% prevalence and severity. Late blight potato is cold and wet