Signs of black rot in Aeonium and common prevention methods

It is almost June, and as temperatures gradually rise across the country, it signals that true summer is coming, and it is also the season when Aeonium is at its most beautiful. Your Aeonium are basically about to start their dormancy, but beauty often comes with a price, and for Aeonium it is also the most dangerous season.
With black rot in Aeonium, the very first symptom is abnormal massive leaf drop (the kind that falls off at a touch, not the dead leaves dropped due to normal consumption, because dead leaves dropped due to normal consumption are normal, so there is no need to worry), but Aeonium that get black spot disease will also drop leaves.
So how do you tell whether it is black spot disease or black rot? Black spot disease, as the name suggests, means there are black spots on the leaves. So if the Aeonium leaves have no black spots but are dropping leaves for no apparent reason, then it is very likely black rot. Therefore, the first sign of black rot in Aeonium is leaf drop.
Besides leaf drop, the second sign is that leaves turn to water, or a large number of leaves abnormally wither and fall off. Once a plant has black rot, it is hard to guard against. If the Aeonium has already dropped leaves, that is, if the above signs of black rot are present, it is generally already gravely ill, but it is not necessarily beyond saving.
Black rot generally occurs when summer is approaching, that is, in May and June. Remember, generally, generally speaking, of course it is also possible in winter, though Xiaofei has never seen black rot in winter. In May and June, the temperature is basically around 30 degrees, bacteria and fungi are extremely active, and inside the pot it is typically stuffy, damp and hot.