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一、锈病 1.发生症状:主要为害叶片和花薹。病部产生椭圆形或棱形黄色稍隆起的疱斑(夏孢子堆),表皮裂开后散出橙黄色夏孢子;后期病部形成黑褐色椭圆形
First, rust 1. Symptoms occur: the main damage leaves and flower stalks. Sick part of the elliptical or prismatic yellow slightly bulging blisters (summer spores), epidermal dehiscence after the release of orange-yellow uredospores; the latter part of the disease formed dark brown oval