The occurrence of rust is a relatively easy situation for all kinds of begonias. When the disease is relatively serious, there will be a dense variety of disease spots on the leaves, which will make the leaves begin to wither and yellow and drop down. Avoid planting with pines and cypresses, which will reduce the incidence of disease. If there are pines and cypresses nearby, you should use chemicals to prevent and control. If the disease has already started, in the early stage, you can spray 1:200 times Bordeaux solution on it for treatment, which can effectively control its occurrence and spread.
Dry leaf is very common, there are many reasons, mainly as follows:
1. Too much water: this kind of plant is very afraid of water logging. If the water is not well watered, a strong force is exerted when the basin soil is not needed, which will cause the root to rot and the leaves to dry. At ordinary times, we must control ourselves and do not add anything.
2. Too many nutrients: nutrients support the growth of plants, and too much fertilizer will lead to root accumulation and rot, and leaves can not be absorbed.
