How to treat bacterial leaf blight in greenhouse melons? Detailed control methods
This disease is a bacterial disease that mainly damages leaves, petioles and young melons, and can cause damage throughout the entire growth period. When infected at the seedling stage, the cotyledons show water-soaked yellow sunken spots. When leaves are infected, the early stage shows light green water-soaked spots on the underside of the leaves, and gradually the leaf surface turns into light brown necrotic lesions. After drying, the lesion area becomes brittle and perforated. To prevent this disease...
This disease is a bacterial disease that mainly damages leaves, petioles and young melons, and can cause damage throughout the entire growth period. When infected at the seedling stage, the cotyledons show water-soaked yellow sunken spots. When leaves are infected, the early stage shows light green water-soaked spots on the underside of the leaves, and gradually the leaf surface turns into light brown necrotic lesions. After drying, the lesion area becomes brittle and perforated. To prevent this disease, first remove diseased plants and diseased residues and burn them, and sprinkle lime into the diseased planting holes for disinfection. Second, deep plow the soil, promptly remove diseased residues, pay attention to ventilation and moisture removal, adopt high-ridge cultivation, and strictly control farming operations such as pruning and vine tying under cloudy, dewy or humid conditions. In addition, warm water seed soaking and other methods should be used to disinfect seeds. Seeds can be soaked in 55°C warm water for 15 minutes, or treated with 2 million units of streptomycin sulfate for 1~2 hours, then washed and sown. Chemical control: to prevent bacterial diseases, at the early stage you can choose 47% Kasumin wettable powder at 800 times dilution or 77% Kocide wettable powder at 500 times dilution; these can all be mixed with fungal fungicides for application.