The dark spots of the succulent plants appear dark spots, then drop, turn the water, spread slowly from one leaf to the whole plant, spread from one or two pieces of meat to a lot of more meat. Symptoms of melasma: dark spots appear on the leaves, usually round, and then the leaves will wither or turn into water, falling on a single touch, slowly all the leaves begin to grow dark spots until the growing point, and then the whole plant hangs Drop it. This process is usually very slow, and it often infects other fleshy before it hangs, so it has been found to be isolated as soon as possible.
There are many kinds of spores, rapid reproduction, strong invasiveness, and many sources (the most common mode of transmission is usually rain and wind, and the source of infection is usually soil, such as soil that your flower market brings back with the meat from the pot). Weakness is fear of high temperature and fear of dryness. The main physical means for preventing black spot disease are: Do not use unsterilized and sterilized soil, pay attention to ventilation in the planting environment, and avoid raining in the rainy season (this is very important).
If the succulent plants have melasma, they basically need to spray some bactericidal agents to cure them (when the overall planting environment improves, the onset of symptoms will be slightly delayed), the conventional carbendazim, chlorothalonil (also available Syngenta's "Ah "Missida", BASF's "Kaiser" alternative) can be treated, some of the better therapeutic agents Baitai dispersible granules, thiophanate-methyl wettable powder, Kecong Kang WP.
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