Symptoms and Prevention and Cure of Leaf Blight and Edge Blight of Cucumber

I. Symptoms of keratopathy The early stage of the onset of leaf appearance of the size of the needle on the back of the oil immersed spots, expanding due to the limitations of the veins were polygonal, lesions sag, often milky white bacteria thick spill, after drying into a thin layer of bright white film The diseased and healthy parts of the leaf appear not to be very distinct yellow spots, but can also harm the melon strips. The early stage was earlier than downy mildew, and it was later than the downy mildew. Marginal blight is caused by the intrusion of bacteria from the edge of the leaf, and can be seen as a "V"-shaped lesion that narrows inward from the leaf margin and is pale brown in color.
Second, the prevention and control of pesticides to detect diseased plants should be promptly medication, use of agricultural streptomycin, neophytin 4000 times, or with 30% copper citrate fat (DT fungicide) 500 times, 600 times Ruiduduoxin , can kill 2000500-700 times liquid. Spray once every 7-10 days, even spray 3-4 times.

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