据最近调查,在印度德里不同地区发现一种新的芒果枯萎病,初期症状是在叶片上出现小而孤立的、暗褐色不规则病斑。而后病斑迅速扩大,多在叶尖、叶缘处汇合,形成不规则斑块,呈现严重的枯萎病症状。嫩梢也同样感病。据观察,苗圃发病率比成龄果园高。在苗圃施用高量氮、磷、钾肥料时,苗木的发病率也较高。 According to a recent survey, a new species of mangrove wilt was discovered in different parts of Delhi, India, with initial symptoms of small, isolated, dark brown irregular lesions on the leaves. After the rapid expansion of lesions, mostly in the tip, the edge of the convergence Department to form irregular plaques, showing a serious symptom of Fusarium wilt. Young shoots are equally susceptible. It is observed that the incidence of nursery garden orchard than high. In the nursery high nitrogen, phosphorus and potassium fertilizer, the incidence of seedlings is also higher.