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紫荆又名满条红,其树姿优美,叶形秀丽,花朵别致。为常见的早春花木。栽培管理中常见的几种主要病虫害有:1.紫荆角斑病症状:主要发生在叶片上,病斑呈多角形,黄褐色至深红褐色,后期着生黑褐色小霉点。严重时叶片上布满病班,常连接成片,导致叶片枯死脱落。发病规律:为真菌性病害,病原菌为尾孢菌、粗属孢菌两种。一般在7至9月发生此病。多从下部叶片先感病,逐渐向上蔓延扩展。植株生长不良,多雨季节
Bauhinia, also known as full of red, its beautiful tree pose, leaf-shaped beauty, flowers chic. For the common early spring flowers. Cultivation and management of several common pests and diseases are: 1 Bauhinia Kok spot disease symptoms: mainly in the leaves, the lesions were polygonal, brown to dark reddish brown, dark brown spot after the students. Severe leaves covered with sick classes, often connected into pieces, leading to leaves withered off. The incidence of law: for the fungal diseases, pathogens cercospora bacteria, two species of Coelomyces. The disease usually occurs from July to September. More from the lower part of the first leaf flu, gradually spread upward expansion. Plant poor growth, rainy season