The prevention and control of bacterial fruit rot of watermelon can only be done well by understanding the cause of serious damage.

Melon bacterial fruit rot is a common disease such as melon, watermelon and cucumber. Once melon is infected with bacterial fruit rot, it is difficult to cure. As far as the current situation is concerned, the best way is to prevent it in advance. Here Science Xingnong will share with you some little knowledge on how to prevent and treat melon bacterial fruit rot.

1. Characteristics of bacterial fruit rot.

Melons may be infected with bacterial fruit rot throughout the growing period, and there are more easily infected parts. For example, the cotyledons of muskmelon will appear yellow spots like flooding after they are infected with the disease, and the spots will spread to the real leaves of muskmelon, forming large flooded maculae, and in severe cases, white purulent secretions will appear in the spots. In addition to leaf infection, melon vines can also occur, with symptoms similar to those of leaves. Melon flowers can also be infected. However, the most common symptom is fruit infection, which will cause internal decay, running water and holes on the surface of melon, which will seriously affect the income of melon farmers.

2. The transmission route of bacterial fruit rot.

A clear understanding of how the disease spreads will help to strengthen prevention and treatment. The first is the living place of the bacteria, which mainly exist in the soil and seeds, and the bacteria can survive the winter until the following spring. In addition, there is a suitable living environment for bacteria, which is mainly in the greenhouse, or the place where melon seedlings are grafted. Because these environments have high temperature, high humidity, and melon seedlings have incisions, they are very suitable for germs to invade. In particular, the disinfection and sanitation work in some grafting places is not in place, and the utensils, knives and personnel used in grafting are all unqualified, which can easily lead to the rapid spread of germs.

3. Control of bacterial fruit rot.

Healthy aseptic seeds are the first step in growing melons, so be sure to buy regular seeds when you buy them. In addition, the seeds must be disinfected before planting to prevent the growth of germs. disinfection methods can be soaked in warm water, generally soaking in warm water of about 50 degrees for about 30 minutes, which can effectively reduce the survival of bacteria. Finally, seed production enterprises should strengthen aseptic breeding.

In the process of field control and planting, we should pay attention to the planting density to avoid planting too dense and affect the growth of melon vines. It is best to keep the soil dry, avoid the breeding of germs, and keep the melon vines ventilated and ventilated. Avoid flood irrigation, do a good job of field drainage, timely drainage in case of heavy rain, to avoid stagnant water in the field. Try to avoid damage to melons and vines during field management.

Once the disease occurs, the drug must be contained in time. It can be diluted with 4000 times of chlorpromazole wettable powder, 4000 times of agricultural streptomycin, or 60% of chlorothalonil wettable powder. Spray once a week, about three times in a row. Usually can spray some chlorothalonil, carbendazim, metalaxyl manganese zinc wettable powder and so on, disinfection to prevent the growth of bacteria.

The above answer about melon bacterial fruit rot comes from the original creation of science and agriculture. I hope it will be helpful to you.