Causes and control methods of rotten flowers of zucchini

Zucchini is one of our common vegetables. Rotten flowers often occur when it is planted, which seriously affects the yield and causes huge economic losses to farmers. So what is the reason for the rotten zucchini flowers? How to prevent and cure it? Let's take a look.

1. The cause of disease

There are many reasons for zucchini rotten flowers, the most important of which is disease, among which the representative is Botrytis cinerea, which is a major disease harmful to flowers. In addition, the temperature drops, the flowering period of zucchini is more strict for the temperature, once the temperature is too low, it will cause its flowers to stop growing, and the fertilizer will suffer frost damage over a long time. In addition, the humidity is too high, which is caused by breeding bacteria and infecting flowers, the root development is hindered, the absorptive capacity is reduced, and the flowers can not get enough nutrients to grow and rot.

2. Symptoms

At the beginning, the flowers appear watery spots, the spots gradually expand and appear wet rot, and there will be gray-black mildew in the later stage, which is a typical planting of gray mold. And some wet rot flowers will also appear the phenomenon of pus, pus is generally grayish white or yellowish brown, but also accompanied by bad smell. Therefore, in the prevention and treatment, we must distinguish the good symptoms, prescribe the right medicine to the case, and at the same time strengthen management to prevent the occurrence of diseases.

3. Prevention and control methods

Mainly Botrytis cinerea, adding bacterial agents during planting can kill the bacteria carried by seeds and reduce the incidence of Botrytis cinerea. At the same time, boron, calcium and other trace elements are added to the base fertilizer, which can inhibit the growth of harmful bacteria and reduce diseases. At the same time, we should pay attention to the changes of temperature and humidity during cultivation, keep warm in time in case of low temperature climate, and drain and dehumidify in time in the rainy season. At the same time, Jiefeng, Fengshou No.1 and cytokinins can be sprayed in overcast and snow and other special weather, which can enhance the resistance of the plant, and the appropriate application of phosphorus and potassium fertilizer can enhance the disease resistance of the plant.

The above is the introduction of the causes and control methods of rotten zucchini flowers. I hope I can help you. If you want to know more about it, please follow us.