The succulent rainbow jade has long black spots. Is it soot disease? Another long white spot, is it sunburn or

Symptoms of black spot disease: black spots appear on the leaves, which are generally round, and then the leaves will wither or be watered, and will fall off when touched lightly. Slowly, all the leaves begin to grow black spots until the growth point, and then the whole plant will hang up. This process is usually very slow, and it often infects other succulents before it dies, so it is necessary to isolate treatment as soon as possible.

Medication: carbendazim and chlorothalonil. I think these two medicines are basically enough. For beginners, those complicated drug names are really not recommended, just enough. )