Prevention and control of spinach downy mildew should be comprehensively managed. China Pesticides Network Xiaobian collects relevant management methods and shares it with everyone hopes to help everyone:
First, the fertilizer pipe protection spinach like fertile moist, cold, avoid drought, stagnant water, for fast-growing vegetables. Therefore, it is necessary to supply sufficient fertilizer and water in time during the growth period. From seeding to seedlings, it is necessary to keep the soil moist and ensure the seedlings. 3 leaf stage cultivating alfalfa, ventilating and promoting roots; before the closure of the line, the 6 to 7 leaf stage should be combined with water, fertilizer and water to promote the vigorous growth of spinach, 10 to 15 kg of urea per mu, fertilization method, dry application and pouring Water or when it is raining, use the daytime fertilization; after sealing, if you want to topdress, you can apply ammonium bicarbonate water with water. If it is dry during growth, it should be moisturized. In case of continuous rain, it is necessary to clear the drainage in time.
Second, the prevention and treatment of pests and diseases Spinach diseases are mainly downy mildew, anthracnose, mainly to damage the leaves. Pests mainly include leaf miners and aphids, which should be controlled in time. Control methods: Agricultural control is carried out for 2 to 3 years, reasonable planting, scientific irrigation, clean gardening, and timely removal of sick bodies. Pesticide control: the disease can be selected with 64% anti-virus 矾 500 times liquid, 52.5% anti-fast 1500 times liquid, 70% methyl thiophanate 700 times liquid and other pharmaceutical spray protection, insects can choose 75% gram 3000 ~ 4000 times liquid, 0.5% Haizheng Sanling 2500 times liquid, 15% dish hi 1500 ~ 2000 times liquid, 70% Emerald 7000 times liquid and other pharmaceutical spray prevention.
Third, timely harvest when the spinach plants grow to 35 ~ 40 cm, can be harvested in time, harvested yellow leaves, dead leaves, diseased leaves, and then sold.
As long as the spinach downy mildew is managed, the harm of the disease can be alleviated to some extent. The biopesticide experts remind everyone to use pesticides in a timely manner.
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