Symptoms: this disease mainly damages the leaves. The back of the injured leaves will grow yellow brown spots. In the later stage, it will cause the leaves to turn yellow and fall off.
Prevention and treatment: after this disease occurs, spray a little sodium rust, add a small amount of washing powder, or spray with Baume every 7-10 days, 2-3 times in a row to achieve the effect.
Symptoms: it is easy to occur in high-temperature rainy weather, and the leaves will appear dark spots like water stains, and then there will be a trend of wilting, affecting the ornamental.
Prevention and control: if you want to treat this disease, you can start from the source and strengthen ventilation treatment, which can effectively reduce the occurrence of the disease. After finding the infected disease, cut off the infected leaves first, so as to prevent infection of other healthy leaves. Spray a little Bordeaux or dixone in the evening.
Symptoms: it is easy to infect aphids, vegetable black insects, almond wasps, apricot ball scleroderma, etc. in the growth. These pests gather together and then suck the juice in the plant, causing problems in the whole growth.
Prevention and control: it can be sprayed with dimethoate and dichlorvos, which have good effect.
