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仙人掌类植物种类繁多,为害这类花卉的病虫害种类也较多,现将常见的病虫害分述如下: 1.炭疽病此病较为普遍,是一种真菌性病害。受害后茎节呈浅褐色湿腐,病部表面产生许多淡红色小粒点,其上生有大量孢子。另一种真菌,也能引起仙人掌炭疽病。发病后茎节上产生圆形或近圆形病斑,直径4～8毫米,淡褐色,其上着生小黑点。防治方法:①选无病茎节进行繁殖;②更换病土或用1％福尔马林液进行土壤消毒;③发现病斑,喷射70％托布津1.000倍液。
Cactus plant a wide range of pests and diseases of these flowers are also more types of pests and diseases are now common points are as follows: 1. Anthrax The disease is more common, is a fungal disease. After the injury was stem light brown wet rot, the Ministry of the surface of many light pink particles, the students have a large number of spores. Another fungus, can also cause cactus anthracnose. Occurred on the stem after the onset of round or nearly circular lesions, diameter 4 ~ 8 mm, light brown, with black spots on students. Prevention and treatment methods: ① selected disease-free stem propagation; ② soil replacement or soil disinfection with 1% formalin; ③ spot disease, spraying 70% Topaz Jin 1000 times.