Bacterial bacterial blight of cucumber is a serious hazard in some regions and in some years. Nonwoven Coated PE Film With Glue Nonwoven Coated PE Film With Glue,Disposable Surgical Drapes,Laminated Nonwoven Fabric,PE Film Laminated Breathable XINLE HUABAO MEDICAL PRODUCTS CO.,LTD. , https://www.golbaltravel.com
Symptoms Symptoms: Onset of leaf disease. Initially, small water-stained spots appear near the water hole, which expands into light-brown irregular lesions. V-shaped veins expand along the leaf veins. Lesions on the petiole and stem tendrils are brownish as water stains. Melon starts softening from the tip. When the humidity is high, the diseased part overflows with a large amount of milky pus, and the melon strip will be softened in severe cases.
Infection route and control conditions? The pathogens in the seeds or in the soil with the disease in the winter, as the initial infestation source. Bacteria are invaded by natural holes such as leaf margin water holes, and propagation and recurrence of field operations in greenhouses, such as irrigation and irrigation, require high humidity, rainfall, and dew condensation on foliage, which is conducive to the occurrence of diseases and more lesions. The sprinkling water of cucumber leaves is invaded by pathogens, and the cucumber grows weakly and the disease is serious.
Control method???
1. Spread the ground to prevent rain cultivation, carry out preventive drug prevention and control, spraying 2% kasugamycin (additional rice) liquid agent 26-54mg/L or 47% spring in the initial stage of disease or the beginning of spread. ) Wettable powder 700 times, 78% wave. Manganese zinc (Cobo) wettable powder 500 times or 40% bacteria crack wettable powder 600 times, 50% Chlorobromoisocyanuric acid Soluble powder 1200 times, 60% cerium copper. Aluminium. Zinc wettable powder 500 times, 53.8% can kill dry suspension 1000 times, 667 square meters spray good liquid 60 ~ 75 (L), even prevent 3 ~ 4 times .
2. Protect the cucumbers and focus on ecological control. See methods for seeing frost molds. Optional dust method when spraying: Spray 10% B dust, or 5% chlorothalonil or 10% copper grease, per 667 Square meter times 1kg.