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赤峰市历年谷子播种面积均在350—400万亩,占全市总耕地面积的约40％。长期以来,谷子白发病、粒黑穗病发病率在7—10％,严重影响赤峰市的粮食产量。近几年,我们大力推广瑞毒霉和拌种双,大大压低了“两病”的发生程度。但是,由于这两种病害都属于种子和土壤带菌,侵染致病,给防治造成一定困难。我们自1984 年以来,用瑞毒霉和拌种双这两种农药混合使用,一次拌种同时防治两种病害试验,结果表明其防效不低于单独拌种,而且省工,又降低用药量,农民很乐意接受。1987年采用瑞毒霉和拌种双混配防治谷子白发病和粒黑穗病的面积达4万多亩。根据几年的试验结果,瑞毒霉和拌种双混配比例以2:3、拌种药
Chifeng calendar year millet sown area of 350-400 acres, accounting for the city’s total cultivated area of about 40%. For a long time, millet white disease, grain smut in the incidence of 7-10%, seriously affecting the food production in Chifeng. In recent years, we vigorously promote the production of rubella and double seed dressing, greatly reducing the occurrence of “two diseases”. However, since both diseases are contaminated by seeds and soil, infestation is pathogenic and causes some difficulties in prevention and treatment. Since 1984, we have used two kinds of pesticides, which are used together with Rysosus mold and seed dressing, to test the two kinds of diseases simultaneously. The results show that the control effect is not less than that of single seed dressing, Amount, farmers are happy to accept. In 1987, the use of Rachelomyces and seed dressing mixed control of white millet disease and grain smut area of 40,000 acres. According to the test results of several years, the ratio of Rumex miltiorrhiza and seed dressing mixed with 2: 3, seed dressing medicine