柑桔溃疡病在我地普遍发生,繁殖的苗木也不同程度地发病。为此,从1983年起,我们对栽植的甜橙苗木,于定植前摘(剪)除所有发病枝叶,以防治溃疡病,取得了令人满意的效果。 其具体方法是:在幼树定植前,对发病不十分严重的苗木,凡是带有溃疡病斑的枝条和叶片,摘(剪)除后集中销毁。定植成活后,在抽梢前喷一次1％等量式波尔多液。以后在每次抽梢展叶期喷一次1％半 Citrus canker disease occurs in my area, breeding seedlings also varying degrees of disease. To this end, since 1983, we planted sweet orange seedlings, before planting (picking) except for all diseased branches and leaves in order to control ulcer disease, and achieved satisfactory results. The specific method is: before the young tree planting, the disease is not very serious seedlings, usually with ulcers lesions of leaves and leaves, pick (scissors) in addition to centralized destruction. After planting, spray 1% equal volume Bordeaux mixture before the shoot tip. After each shoot tip leaf spray time 1% and a half