It usually occurs on the upper and lower surfaces of leaves, and there are few raised blisters on the stems, which have yellow, orange, rust or even purple black powdery spores. In fact, rust will not be fatal at all, nor will the leaves die, but it will make its plants grow weaker. General prevention and control method is to be able to cut off its diseased leaves, in addition to spraying with some chemicals.
The disease usually occurs in the rainy season. At the beginning of the disease, the base of the leaf is covered with white filaments, which will make its roots rot. Then our general control method is to remove the flowerpot and soil with bacteria, and then sprinkle some lime. If you want to cure it, you must pay more attention to ventilation, drainage in the basin soil is also better, if the disease is serious, you must burn those sick plants
This kind of disease is common all the year round, and it is more severe in high temperature or redundant seasons. In general, it starts from the tip of the leaf to the root. The color is brown at first, then it will gradually expand and increase. There are black spots on the leaf surface, which can cause the whole plant to die when it is serious. If it is to be controlled, besides improving the environmental conditions, it is also necessary to spray with some drugs during the disease onset. Generally, once every 7 to 10 days, get rid of it completely.
It's sometimes called the blue louse. When the temperature is relatively high and the air flow is not smooth, this kind of insect pest will propagate faster, which will cause great damage to its plants, and even cause it to die when it is serious. If the quantity is not large, then we can brush it out manually, but if the quantity is large, we need to use some chemicals.
