1、 Symptoms

The leaves of the plant gradually grow some round or irregular stripes, which are relatively small, about 1 mm to a few mm, looking yellowish brown and some dark brown. Unexpectedly, these brown spots are surrounded by a yellow halo. These plates are composed of brown spots. In serious cases, the whole leaf is covered with these terrible things, and the leaves will change and fall easily

2、 Cause

It can be said that the main reason is that a fungus called hemimycetes and other zero kinds of bacteria damage the plant together or in combination. These bacteria are in the state of mycelium or fruiting body, spend the winter on the diseased leaves, and then spread through the wind and rain. It is usually caused by the poor permeability of the planting place or the warm weather and rainy weather

3、 Method

The first step is to quickly pick off these diseased leaves and burn them all together, so as to avoid further spread of bacteria

2 prevention and control. You can regularly spray 600 to 800 times the liquid of Guoguang Yintai on the branches and leaves, plus Guoguang sitaling, which can effectively supplement nutrition while preventing diseases

If you are just sick and not too serious, you can use 25% prochloraz EC 500-600 times or 50% manganese zinc wettable powder 400-600 times to spray on the branches and leaves. You should use it 2-3 times continuously and once every other week