What to do if the roots of succulent plants rot

Causes of succulent plant rot

Fungal infections

Rot is the most common disease of succulents, which is usually caused by fungal infection due to overwatering or too humid breeding environment.

Overwatering

Succulents mostly grow in desert climates and are adapted to extremely dry growing environments, so they should never be watered too much, and the soil should be allowed to dry out between waterings. Another cause of rot is a soil medium that is not breathable, especially for radish. Be sure to use a medium that drains water so that water does not pool on the stem for more than a few minutes (the medium I use is usually one that allows the plant to be completely watered as soon as it is poured).

Pest infestation

Some bugs such as mealybugs can also cause rot, especially root mealybugs. The wounds caused by these pests when they suck plant sap can cause fungal infections. Spray pesticides to kill pests and carry out disinfection in time.

There are many ways that rot can manifest itself, and by the time you notice it, it’s often too late. Always be wary of discolored areas on the plant, as well as stems and leaves that become soft and mushy.

Rotting parts of succulent plants

Crown rot: Rot inside the plant, causing it to fall over;

Stem rot (mainly Euphorbiaceae): This is stem rot, usually at the base of the stem;

Spotted stem rot: caused by Orange stink bugs;

Fungal rot: Brown, watery stains appear on the plant;

Apricot rot: occurs on branches and trunks

Black rot: often occurs after infection by cotton aphids or root pollen.

Succulent Rot Treatment

Crown rot: Use a sharp knife to scrape away the infected part, then stuff the wound with crushed charcoal and flowers of sulphur. The wound should dry completely.

Neck rot: Cut off the rotten part and treat the rest as cuttings. Remember to bury the plant only after the wound is completely dry.

Fungal rot: Cut off the damaged part with a clean knife and cover with flowers of sulphur. Spray the plants with a mixture of benomyl (translator's note: a fungicide) and mancozeb.

Black rot: Cut off the infected part with a clean knife, spray with benomyl, and cover with flowers of sulphur.

Note: Be sure to keep your utensils clean and sterile when handling rotten plants, and wash your hands carefully before touching other plants.