Peanut leaf is a virus or sore?

The phenomenon of large leaf rolling in peanut fields may be caused by peanut virus disease or scab disease. There are obvious differences between the two diseases.

The viral roll caused by the virus disease mainly occurs on the top of the young leaves, and the leaves are thin and yellow, showing a variegated leaf. Poorly developed and poorly growing plots often suffer from severe disease. When the disease occurs, they are distributed in patches in the field. The dwarf diseased plants are prone to malformed fruit.

The leaf wounds caused by peanut scabs also occur first in the top leaves, but brown spots appear on the back of the leaves. The single leaves do not yellow, and later infected stems form scabs and the stems are bent. Usually large-grain peanuts have a severe onset.

Most of the above two crop diseases occur at the same time, and targeted preventive measures should be taken.

For peanut virus disease, adopt comprehensive technical measures to suppress it: 1. Increase foliar fertilization, supplement nutrition, and enhance plant disease resistance. 2. Spray virus inhibitors, such as oligosaccharide chain proteins, copper acetate, etc.

For peanut scab, benzopicazole can be used for prevention and treatment. The following methods can also be used for prevention: 1. Crop rotation can be applied to soy, corn and other crop rotations. 2. Use resistant varieties.

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