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甘薯干腐病是甘薯贮藏期的主要病害之一,在收获初期和整个贮藏期均可侵染为害。症状为薯块上有圆形或不规则形凹陷的病斑,发病部分薯皮不规则收缩,淡褐色,病斑凹陷,严重时,薯块腐烂呈干腐状。或者薯块两端发病,表皮褐色,有纵向皱缩。防治甘薯干腐病可采取以下措施:1.培育无病种薯。选用3年以上的轮作地作为留种地,从春薯田剪蔓或从采苗圃高剪苗栽插夏秋薯。
Dry rot of sweet potato is one of the main diseases during the storage of sweet potato, which can be infected during the early harvest and during the whole storage period. Symptoms are round or irregular shaped potato tuberosclerosis of the lesion, the incidence of irregular contraction of some of the potato skin, light brown, spot depression, serious, tuber rot was dry rot. Or disease at both ends of the disease, epidermal brown, longitudinal shrinkage. Prevention of sweet potato rot can take the following measures: 1. Cultivate disease-free seed tubers. Use more than 3 years of rotation as land to stay, cut from the Manchurian Manchurian manor or cut from high-cut seedlings planted summer autumn potato.