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Watering Law Cucumber Downy Mildew
Cucumber downy mildew is one of the most serious diseases that damage the production of cucumber in the solar greenhouse. The condition of the cucumber is increasing year by year. Using a gas lighter to burn spots on the plant can achieve good control effects. Use this method, one must always carefully observe, always found that the size of the needle point of the lesion immediately with fire, especially in the lower part of the greenhouse ridge, drip place and other places where humidity is the first disease; the second is to burn, put The diseased leaves lay flat, and under the leaves, the flame tip is aimed at the lesions and only burn for 1 second to 2 seconds. Afterwards, only one small white spot is left at the point of burning, which does not affect the growth of other parts of the leaf. After the point of burning, spraying the whole greenhouse to prevent, can significantly inhibit the prevalence of cucumber downy mildew.