Red rot is a bacterial disease, which is the main disease of succulent plants and often damages the tuberous succulent plants. The pathogen invades the root wound, causing the tuber to appear reddish brown spots, which will rot and die in a few days.
It is not difficult to deal with the red rot disease saygoodbye. Spray 70% tobujin WP 1000 times before planting to prevent it. If there is a wound on the tuber, dry it and apply sulfur powder for disinfection.
Large rust brown spots will appear on the epidermis of stem after succulent infection, which will gradually expand from the base of stem, and the stem will be full of spots in serious cases.
Combined with spring basin changing and pruning, the diseased branches were cut off and waiting for new shoots to germinate.
Spray with 12.5% diniconazole wettable powder 2000-3000 times.
Anthrax is one of the most important diseases of succulent plants. In the high temperature and wet plum rain season, the stems of infected plants will produce light brown water spots, and the disease will gradually spread and rot.
First of all, open windows to ventilate, reduce indoor air temperature and humidity, and keep basin soil dry during this period.
Spray with 1000 times solution of 70% thiophanate methyl wettable powder to prevent the disease from spreading.
Putrefaction mainly damages the fungal diseases of Cactaceae. Cactus seedlings will suffer from this disease, a large number of sudden collapse, atrophy and death. The whole plant will be soft rotted and die.
Keep the air fresh and pay attention to air circulation. In the early winter, spring and rainy season, the fungicides are sprayed in advance for sterilization. After the onset of the disease, spray chlorothalonil for killing, the specific use method can be based on the drug description.
It is mainly caused by the bad cultivation environment, such as strong sunlight, insufficient light, sudden low temperature and long-term water shortage, resulting in burns, browning, excessive growth points, frostbite of some tissues, atrophy and wilting of the top and other diseases.
The most fundamental measure is to improve the cultivation conditions, ensure sufficient sunlight, appropriate lighting conditions, timely watering and fertilization.
