仙人掌炭疽病是多肉类花卉的重要病害。发病植株初感病时,茎上出现不明显水渍状病斑。以后病斑扩展为淡褐色湿腐,直至部分茎或全株腐烂。腐烂部分干枯后,上面生有许多小黑点,遇潮湿天气,或栽培地空气中湿度过大时,小黑点涌出粉红色分生孢子堆。该病除危害仙人掌外,还可为害令箭荷花、光棍树等 Cactus anthracnose is an important disease of fleshy flowers. Early onset of susceptible plants, the stem appears obvious water-like lesions. After the lesion extended to light brown wet rot, until some stems or whole plant decay. Rotten part of the dry, above the birth of many small black spots, case of wet weather, or cultivation of air humidity is too large, black spots pouring pink conidia pile. The disease in addition to endanger the cactus, but also for the injunction of the arrow lotus, bachelor tree