Strawberry berry disease

Identification and occurrence: The main damage strawberry leaves, flowers, fruit stems and fruits. When it develops on the leaves, brown or dark brown spots of water stains are produced. Sometimes the diseased area is slightly rounded. When the dry part of the disease brown dry rot, moist leaves when the back of the white hairy hairy mycelium. When the fruit was damaged, it began to appear as a brown, light-brown spot, and as a result, the spots expanded, the whole fruit became soft, and a gray mold consisting of conidiospores and conidial stems was found. The pathogen of the disease is Botrytis. The pathogenic bacteria overwintered in the damaged plant tissue, and the disease became severe when the temperature was 18~20°C, high temperature and lush conditions, excessive irrigation, rainy weather, and excessive air humidity. Botrytis cinerea is a major disease of strawberry, and both facility cultivation and open field cultivation are easy to occur. Generally, it can reduce production by 10% to 30%. In severe cases, it can reduce production by 50%. Chemical control: 50% Procymidone WP can be used to spray 1500 times, 40-50 grams per acre; 40% Dakkonine suspension can also be sprayed 800 times, 100 grams per acre.

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