Attention! Cucumber diseases should be prevented as soon as possible!

Cucumbers are widely cultivated in China, most of which are cultivated in greenhouses or plastic greenhouses, and are now widely cultivated in temperate and tropical regions. Planting cucumbers should pay attention to, cucumbers appear the following symptoms that there is a disease, to prevent and cure as soon as possible.

1. Main diseases of cucumber

Cucumber diseases mainly include brown spot, downy mildew, bacterial angular spot, leaf blight, anthracnose, sudden drop, blight, blight, gray mold, target spot, powdery mildew and so on. The main reason for the disease is that with the warming of the weather, the gradual rise of temperature and improper management, it is caused by the environment of high temperature and high humidity. The symptoms of these diseases are very similar.

Second, the main symptoms of cucumber diseases

Cucumber disease is generally ferocious, and spread fast, if not timely control, may cause a devastating blow, the whole cucumber field may have no harvest. When cucumber occurs, it is mainly concentrated in leaves. When cucumber disease occurs, the cucumber leaves will first appear grayish brown spots, especially in the morning with high humidity. Then the disease spot gradually expanded, limited by the veins of the leaves showed polygonal light brown or yellowish brown patches, when the humidity increased, there will be a black mold layer. In the late stage of the disease, the spot is ruptured or connected, causing the leaf margin to curl and dry, and the serious shed is withered and yellow. The peak of cucumber disease is in spring and autumn.

III. Control measures of diseases

Before cucumber disease, corresponding preventive measures can be taken. Before cucumber sowing, seed disinfection and land disinfection can be carried out to reduce the incidence. In the process of cucumber growth, it is necessary to strengthen cultivation management, improve cultivation techniques, maintain indoor ventilation and ventilation, so that cucumber has a good and suitable growth environment.

When the disease of cucumber has occurred, chemical treatment should be carried out as soon as possible, and different pesticides should be sprayed according to the specific symptoms of cucumber, and at the same time, the relevant control measures should be inspected. Whether the omission of control measures led to the disease. Must not wait until the disease develops to the later stage to remedy, so that the growth of cucumbers will not only reduce production, but also very affect the taste.

These are some little knowledge about the prevention and control of cucumber diseases. I hope that friends who plant melons and fruits can stay away from melon and fruit diseases and have a good harvest.