养兰者都知道灰霉病是最常见的一种病害,尤其是在冬春季温室培植的兰花,兰花生长期间任何部位,都会遭受灰霉病的危害,引起兰花落花、落叶,不仅不利于开花,还会严重影响其观赏价值,现将其危害症状及防治方法介绍如下:症状识别主要危害兰花的花朵、花梗、叶片、萼片等部位。叶片被害时主要在叶背可见到褐色的病团,不均匀的分布在叶背面,影响叶片的光合作用, Phyllostachys are aware of gray mold is the most common disease, especially in the spring and winter greenhouse cultivation of orchids, orchids anywhere during growth, will suffer from gray mold disease, causing the orchid flowers, leaves, not only is not conducive to flowering , But also seriously affect their ornamental value, now its harmful symptoms and prevention methods are described below: Symptoms identify the major endangered orchids flowers, pedicel, leaves, sepals and other parts. Leaf damage was mainly seen in the back of the brown disease group, uneven distribution in the leaf back, affecting leaf photosynthesis,