玫瑰锈病是花卉栽培中最易发生的病害之一,它使叶片脱落,植株生长不良。发病后植株蒸腾和呼吸作用加速,光合作用和生长势减弱,叶片提早发黄、脱落,不仅影响观赏,而且影响花的产量和质量。在锈病大发生时甚至造成死苗。发病症状。玫瑰锈病危害地上部分的各绿色器官,主要危害叶片和芽。一般在春季展叶后叶片正面出现不明显的小黄点——性孢子器;叶背及叶柄上出现黄色稍隆起的小斑点——锈孢子器(直径0.5~1.5毫米),突破表皮后散 Rose rust is one of the most susceptible flowers in the cultivation of diseases, it makes the leaves fall off, poor plant growth. After the onset of plant transpiration and respiration accelerated, photosynthesis and growth potential weakened, leaves yellowing earlier, shedding, not only affect the ornamental, but also affect the yield and quality of flowers. In the rust occurs even when the dead seedlings. Symptoms. Rose rust harms the various green organs of the aboveground parts and mainly harms the leaves and buds. Generally in the spring leaves after the leaves appear obvious obvious small yellow spots - spores; leaf back and petiole appear yellow slightly bulging small spots - rust spores (diameter 0.5 ~ 1.5 mm), break through the epidermis