Pay attention to the control of eggplant brown leaf disease

As the temperature rises, brownie disease of eggplant will occur severely. The seedling stage causes the lack of plants, and the adult stage disease leaves dark spots. The resulting disease causes fruit decay. Therefore, it must be early prevention and treatment of brown smut.

First, symptom recognition

After the eggplant seedling became sick, it often produced brown to black fusiform or elliptic lesions on the stem base near the ground, with a slight depression. When the lesion surrounded the stem one week, the diseased part contracted and the seedling died. In the adult stage, the leaves form white spots, which gradually expand into irregular spots. The edges are dark brown and the middle is pale yellow, with many small black spots on it. The fruit is susceptible to disease. It begins to form brown lesions on the surface. It is round or oval, slightly concave, and then expands to full fruit. The disease department consists of small black spots that make up the obvious ring pattern, and finally the soft rot falls off or dry rot turns into a stalemate.

Second, control methods

1. Agricultural control. Before sowing, soaking in warm water at 55°C for 10 to 15 minutes, then rinsing with fresh water and germination. More than two years of rotation with non-solanum crops. Apply base fertilizer, increase phosphorus and potassium fertilizer, and do not apply nitrogen fertilizer. Watering should be done with a small amount of water and the surface should be dry and wet. The plant is densely planted in a timely manner, pruning in time and improving the ventilation and light transmission in the field.

2. Chemical control. When sowing, use 50% carbendazim WP 10g/m2, 50% MET WP 10g, mix and mix 2 kg of fine soil to make up the soil, take 1/3 of the vinegar and sow , and then cover the seeds with the rest of the medicine.

The incidence of seedling stage can be sprayed with 50% Kedan 500 times solution. After planting, herbicide ash or lime powder can be applied to the base of the stem for sterilization and prevention. The results can be sprayed with 40% Fuxing 5000 to 6000 times liquid, sprayed every 7 to 10 days, and sprayed 2 to 3 times.

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