The latest control of anthracnose in hot pepper

Pepper will have different diseases in different periods. Now I will give you a brief introduction to anthracnose of pepper. The disease is mainly infected with mature or nearly mature chili peppers after changing color, and the fruits of hard planting are violated during harvest. We must not let this happen. Let's see how to deal with it and kill the germs.

First, the expression of disease susceptibility

Infection of ripe fruit is usually complicated after burns. The circular plaque with ring began to appear, and the spot was covered with red grains, which gradually turned black. The spot is gradually sunken. Red sticky material appears when the weather is cloudy and wet, which turns to a thin gray shape when dry. Occasionally, the old leaves will be infected, showing round brown spots, producing small black spots, and eventually falling leaves. Stem pedicel appears brown irregular disease spot, dry rupture, may also be infected.

II. Occurrence and spread

The pathogen overwinters as conidia in the seed epidermis, or the hyphae enter the seed. Spring seeds can be directly spread with bacteria, directly unearthed and infected. At the same time, conidia can also propagate and spread through wind and rain, irrigation and water sources. The bacteria also grow well under high temperature, and the disease is easily induced by air humidity above 70%, partial application of nitrogen fertilizer and strong light for a long time. Germs generally enter from wounds, tender parts, and natural orifices.

III. Treatment measures

1. Seed selection and soaking

Keep the seed to detect the disease, pick the pepper from the plant without disease, take seeds, if the pepper variety has strong disease resistance and good adaptability, especially deal with the disease-resistant and high-quality varieties developed. The remaining seeds should be soaked in 500 times of 50% carbendazim wettable powder or soaked for 1 hour before sowing. In the later stage, the disease can be treated with 50% mancozeb zinc wettable powder spray or 75% chlorothalonil wettable powder solution, with an interval of two days and prevention and treatment for two or three times.

two。 Manage and clear the garden

Planting to determine the appropriate spacing between rows, density is appropriate, good ventilation and light transmission, appropriate temperature, will not be closed. Base fertilizer topdressing should be used timely and the dosage is sufficient, which can maintain healthy growth potential and enhance disease resistance. Moisturizing the surface of the soil in the field is dry, and if it is moist, it will not be infected with germs. Fruit can be picked earlier, anyway, you can rely on physiological post-ripening, there is no possibility of disease, but also convenient for storage. After the pepper harvest is complete, the plants can be pulled out and the diseased remains can be collected and burned and sterilized to avoid the harm of overwintering.

There are many inducements for the occurrence of anthrax. In fact, in order to do a good job in prevention, we must first eliminate the potential causes, and then if it still occurs, we must use some medications to control it. The best way is to harvest early, so there is no possibility of being harmed.