How to prevent and cure pepper blight

The disease is a devastating disease of pepper, especially high temperature and rain, and high humidity. It is the peak period of pepper disease. How to diagnose and prevent it is extremely important. Symptom Identification

1. The roots, stems and side branches of the plants are damaged, and dark brown streaks are produced. The edges are not obvious. The branches and leaves above the streaks are quickly withered. The base of the stem often produces brown soft rot, and sometimes the white mold layer is formed in the diseased part.

2. Dark green round lesions are produced on the leaves, the edges are not obvious. When the air is wet, the lesions expand rapidly, and white mold is visible in the diseased part. Some or most of the leaves are soft and rot, which are easy to fall off.

3. The fruit is damaged, the lesions are dark green water stains, soft rot, the edges are not obvious, and soon spread to the whole fruit. When wet, the diseased fruit is densely grayish green. After you know the disease, you can prescribe the right medicine and effectively prevent it. Incidence Law

The oospore of the pathogen of the disease can survive for more than 3 years, mainly overwintering the oospores in the soil and the diseased body, and can pass the season without planting the host crop. Under suitable conditions of temperature and humidity, the oospores begin to germinate, producing zoospores, invading the roots, stem bases, and leaves of the peppers. During the growth of pepper, the spores and zoospores were successively produced, which spread mainly with the irrigated water and rain, and multiple reinfections occurred. Pathogens can also be transmitted through wind and rain and agricultural operations, causing the onset of leaves, branches and fruits. At the beginning, only a few plants were found in the field, but they also formed a center of disease transmission, which quickly spread to the surrounding areas and infect adjacent plants. Under appropriate conditions, it takes only about 7 days from the onset of the disease to the onset of the whole field. Control measures

After the rain, the drug should be used for clearing, and the surface of the plant and the base of the plant should be sprayed. When individual diseased plants appear in the field, it is advisable to use a combination of comprehensive spraying and rooting of individual diseased plants.

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