炭疽病是我国南北各地普遍发生的一种病害,主要危害叶片,也侵染茎、嫩梢、花蕾、果实等部位。大多数花卉受病菌侵染后,从叶尖和叶边缘开始发病,在叶面上出现近圆形病斑,病斑边缘多呈紫褐色或暗褐色,中央为淡褐色或灰白色,后期病斑上生有黑色小点,常排列成轮纹状,发病严重时叶片枯死。现将几种常见花卉炭疽病的发病症状及防治方法介绍如下:一、米兰炭疽病炭疽病是米兰的主要病害之一。 Anthracnose is a common disease in all parts of our country. It harms the leaves and infects stems, tender shoots, buds and fruits. Most of the flowers by the bacteria infection, the onset from the tip and leaf edge, the emergence of nearly circular lesions on the foliage, the edge of lesions were mostly purple brown or dark brown, central to light brown or gray, the late lesion Students have little black dots, often arranged in a round pattern, the incidence of severe leaves withered. Now several common symptoms and prevention and treatment of anthracnose as follows: First, anthrax anthrax in Milan is one of the main diseases in Milan.