Strawberry Verticillium wilt causes strawberry plants to grow slowly, wilt, and even die. This disease is very common in strawberry growing areas and poses a great threat to strawberry production. This article introduces the symptoms and prevention methods of strawberry Verticillium wilt to help you effectively prevent and control strawberry Verticillium wilt.
1. Symptoms of strawberry verticillium wilt.
Strawberry Verticillium wilt occurs mainly in the leaves and rhizomes of strawberries, and its symptoms are manifested in these aspects:
1.The edges of the leaves begin to turn yellow or red, the veins gradually turn yellow, and the leaves gradually wither and eventually fall off.
2.The rhizome is brown with longitudinal cracks, the root system is underdeveloped, and the root mass is reduced.
2. Prevention and control methods of strawberry Verticillium wilt
1.Strengthen cultivation management.
1) Reasonable crop rotation: try to avoid continuous cropping, and it is best to rotate with gramineous crops to reduce the number of pathogenic bacteria in the soil.
2) Soil disinfection: Soil disinfection is carried out before planting, and methods such as high-temperature disinfection or chemical disinfection can be used to kill pathogenic bacteria in the soil.
3) Scientific fertilization: apply more organic fertilizer and microbial fertilizer, avoid partial application of nitrogen fertilizer, so as to enhance the disease resistance of plants. The application of fruit arhat + stroke growth arhat can promote the growth of strawberries and enhance disease resistance.
4) Reasonable irrigation: avoid over-irrigation and over-wetting of the soil to reduce the breeding and spread of pathogenic bacteria.
2.Pesticide control.
1) In the early stage of the disease, timely use of pesticides for prevention and control, and broad-spectrum fungicides such as carbendazim wettable powder or thiophanate-methyl wettable powder can be sprayed for prevention and control, sprayed once every 7-10 days, and sprayed 2-3 times in a row.
2) Before transplanting strawberries, soak and disinfect with 50% carbendazim wettable powder 500 times to reduce the spread of pathogenic bacteria.