Anti-aubergine brown streak disease

High summer temperatures, high rainfall, and high humidity are very conducive to the occurrence of brownie disease in eggplant. The incidence of seedling stage is caused by the lack of plants, and the adult stage leaves with dark spots, resulting in fruit rot caused by the onset of disease, and the prevention and treatment will not cause serious damage to vegetable farmers. loss.

The most suitable temperature for the development of Brassica zeae is 28-30°C, the relative humidity is more than 80%, high temperature, high humidity, rainy weather, continuous cropping, excessive density, excessive nitrogen fertilizer application will cause the occurrence and prevalence of the disease. Its prevention and control methods are as follows:

Agricultural control: Soak seeds in water at 55°C for 10-15 minutes before sowing or soaking in formalin for 15 minutes, then rinse with water and germinate. More than 2-3 years of rotation with non-solanum crops. Apply base fertilizer, increase phosphorus and potassium fertilizer, and do not apply nitrogen fertilizer. When watering, it is necessary to dilute with small water. The surface must be dry and wet to prevent flooding. Proper close planting, 2500-3000 strains per acre, timely pruning in order to improve the ventilation and light transmittance in the field.

Chemical control: When sowing, use 50% carbendazim wettable powder 10g per square meter, 50% Fumei double wettable powder 10g, mixed with fine soil 2 kg made of medicinal soil, take 1/3 sprinkle in the noodles Sow on and then cover the seeds with the rest of the medicine. At the seedling stage, it can be sprayed with 50% Kedeman 500 times, or 60% Fortune Zinc 500 times. After planting, herbicide ash or lime powder can be sterilized at the stem base. The result can be sprayed with 40% Fuxing 5000-6000 times solution, or 80% Xinwansheng WP 500-800 times, or Vanhyalin WP 500-800 times, or 43% Fuliku 4000 times. liquid. Spray once every 7-10 days, spray 2-3 times. To prevent drug resistance, the above pesticides can be used interchangeably.

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