Prevention and treatment of lettuce diseases

Prevention and treatment of lettuce diseases:

Variety selection

The selection of lettuce varieties is very important. Try to choose disease-resistant varieties such as purple skin lettuce and round lettuce, so that the disease can be prevented to some extent.

2. Planting

Reasonable planting density. Ensure the ventilation and light transmission of lettuce plants and promote the better growth of lettuce. Reduce disease.

3. Rotation

Under conditions of conditions, water and drought rotation can be implemented reasonably, and vegetable-rice-vegetable cultivation methods can reduce the occurrence of diseases.

4. Pesticide spraying

Before the fixed value, the pesticides for controlling the bacteria can be sprayed, which can inhibit the occurrence of diseases.

5. Fertilization

Fertilization is very important. It is necessary to apply appropriate nitrogen fertilizer, re-apply organic fertilizer, and increase phosphorus and potassium fertilizers and boron fertilizer to effectively control the bacteria.