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近年来,湖北省竹山县红薯花叶病毒病发生日趋严重。其病苗典型症状为:叶片黄化、皱缩、花叶、卷叶,茎蔓变细、生长势明显较弱。以剪苗后新生薯苗发病最为严重。发病后的薯苗插于大田产量明显较低,一般减产幅度在60%以上。由于红薯是当地农户喂养生猪的主要饲料,因而农户迫切需要有效的防治技术。红薯花叶病毒
In recent years, the occurrence of sweet potato mosaic virus disease in Zhushan County of Hubei Province has become more and more serious. The typical symptoms of the disease is: leaf yellowing, shrinkage, mosaic, curly leaf, thin stems, growth potential was significantly weaker. To cut the seedlings after the emergence of the most serious potato seedlings. After the onset of potato seedlings inserted in the field output was significantly lower, the general rate of decrease in more than 60%. Since sweet potatoes are the main feed for pigs fed by local farmers, farmers are in urgent need of effective control technologies. Sweet potato mosaic virus