1. Powdery mildew: This is a common disease. Irregular spots will appear on the damaged parts. These spots will gradually expand and form a large area together. The edge is not obvious. It will be covered with powdery mildew, that is, the mycelium of bacteria. After that, the powdery mildew will gradually change to gray white, and later it will turn to light brown, which will cause the leaves to wither and shrink, and the young leaves will also change. It has to be twisted and dried, and there will be small black brown particles on it. Usually pay attention to good cultivation, apply mature organic fertilizer, can improve the disease resistance, can spray triadimefon in the early stage of the disease.
2. Mildew: this disease is also a disease infected by fungi. Flowers, leaves and stems will be infected with the disease, which will eventually cause the plant to rot and die. Pay attention to the spraying of chemicals, and use scheklin , puheine < /P /puhaine < /P /puhaine /a > target a >, spraying at flowering anti falling element dilution , and the result period spraying grey mould , and the result period spraying grey mould Quick clean .
It has strong resistance and rarely infects insects. However, because of the incorrect maintenance methods, it may suffer from the damage of spider. They will absorb nutrients on the leaf surface, leading to the yellow and water shortage of the leaf surface. This pest often occurs in drought, so pay attention to water supply, remove the leaves after the disease, spray huachongjing, Sumicidin .
