Control methods of common diseases and insect pests of edamame bean

Edamame bean is a common vegetable with rich nutrition and good taste, which is deeply loved by the people, but in the growth process of edamame bean, diseases and insect pests will affect its yield and quality. So what are the common diseases and insect pests of edamame beans? How to prevent and cure it? Let's get to know it.

1. Downy mildew

Generally harmful leaves, disease spots generally appear on the upper leaves, the initial disease spot outline is not obvious, showing a light yellow, and then become black, in the leaf back covered with light purple mildew layer, when the humidity is high, the more serious the disease.

Control methods: select the varieties with strong disease resistance, increase the application of organic fertilizer, reasonable close planting, enhance the disease resistance of the plant, the disease is sprayed with mancozeb and aldicarb water agent for prevention and control, three times in a row, each time at an interval of 7 days.

2. Powdery mildew

It mainly occurs in the podding stage, which usually occurs in the middle and lower leaves of the plant, and nearly round powdery mildew appears on the leaves at the initial stage, and then fuses into powdery spots, which will cover the whole leaves in severe cases. When the plant has poor growth and weak disease resistance, it is very easy to eat, and the alternation of dry and wet is more conducive to the expansion of the disease.

Control methods: select varieties with strong disease resistance, for plants with weak growth, can be sprayed with amino acid foliar fertilizer to enhance disease resistance, and 800 times of 80% mancozeb wettable powder can be sprayed at the initial stage of the disease.

3. Rust

The disease occurs when small white bulges appear in the leaves, and then gradually turn into yellowish-brown raised blister spots, and chlorotic spots appear on the front of the leaves with blister spots. When the disease is serious, the disease spots are linked together, causing the leaves to wither and yellow and fall off. The prevention and treatment of this disease is similar to that of powdery mildew.

4. Anthrax

The pods are mainly harmful to the pods, and the beans will also be harmed in the later stage. The pods will form small brown spots after infection, which will turn black in the later stage. In the high humidity environment, the spots will appear with small black spots arranged in a wheel. The disease is more serious in the environment of high temperature and humidity, sometimes sunny and sometimes rainy, the disease spreads quickly and can expand rapidly after 2-3 days, so it should be prevented in time according to the change of weather.

Control methods: select varieties with strong disease resistance, the disease can be sprayed with methyl topiramate 600 Mel 800 times liquid.

The above is the introduction of common diseases and insect pests control methods of edamame beans, hope to help you, want to know more related knowledge, please pay attention to us.