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使用稻瘟净和富士一号农药防治稻瘟病,虽防效不错,但药价贵,成本高,难以大面积推广施用。据试验在稻瘟发生时,用黑白灰(柴灰:石灰=4:1)喷洒后有较好效果。使用白酒尿素混合液防治,效果更理想,防效在98％以上。具体方法是:选择60度以上的好白酒,亩用0.1～0.15公斤,加0.15公斤尿素,溶解后兑水50公斤左右,择阴天或睛天早晚喷雾,注意喷施均匀,喷足药量和水量,2天后即可控制病害蔓延,稻谷不受污染,并能提高稻苗的抗病力。
The use of rice blast net and Fuji-1 pesticide prevention and control of rice blast, although a good control effect, but the expensive drugs, high cost, it is difficult to promote the use of large-scale. According to the test in the blast occurs, with black and white ash (Chai ash: lime = 4: 1) after spraying has a good effect. Uses white liquor urea mixture prevention and control, the effect is more ideal, the prevention effect is above 98%. Specific methods are: Choose more than 60 degrees of good white wine, mu with 0.1 to 0.15 kg, add 0.15 kg of urea, dissolved after watered 50 kg, choose cloudy or eye spray sooner or later, pay attention to spray evenly, And the amount of water, 2 days later to control the spread of disease, rice pollution, and can improve the resistance of rice seedlings.