What causes rot in clivia?

Improper care and management of clivia often leads to root and leaf rot, mainly caused by poor ventilation or overly moist potting soil. Second, if the plant contracts southern blight, it will cause dark brown wet rot at the base; if not controlled in time, it will also cause the plant to rot:

The most suitable temperature for clivia growth is 15°C to 25°C. Above 30°C, growth is inhibited, and if ventilation is poor, the leaves will become yellow and wilted. Therefore, when potted plants are moved outdoors for care in late April, a cool and ventilated environment must be created. Bamboo strips can be used to build a frame, covered with reed blinds as a shade canopy, to prevent direct sunlight. In the hot summer, shade work must be done even more thoroughly. Even if kept indoors, it must be ventilated and cool.

Clivia potting soil should be kept moist regularly, but must never be overly wet. If kept outdoors for care, it should be moved indoors promptly during the rainy season, or plastic film used to block rainwater, to prevent waterlogging and root rot.

When repotting or potting up in spring, the potting soil used should be exposed to more sunlight for disinfection, to reduce or avoid the harm of southern blight fungus. The hyphae and sclerotia of southern blight fungus can survive in soil or on plant debris for many years, and the pathogen can spread through the soil. It is prone to occur when temperatures are high in spring and summer and during rainy periods, infecting the base of the plant and causing rot. If southern blight is found, the growing medium should be replaced promptly. For those already rotted, the plant can be pulled out, the rotted roots cut off, soaked in a 500-fold potassium permanganate solution for several hours for disinfection, then removed, placed in a cool place, the wounds air-dried, and then inserted into sterilized plain sand, placed in a cool spot to re-root. If a single spray of 50% carbendazim wettable powder 500-fold solution can be applied before the disease occurs, a relatively good control effect can also be achieved.

Southern blight also frequently harms orchids and succulents such as iris.