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谷子的主要病害有谷子白发病、谷子锈病、谷瘟病、谷子叶斑病及谷子褐条病等。谷子叶斑病主要危害叶片。叶斑椭圆形,大小2~3厘米,中部灰褐色,边缘褐色至红褐色。后期病斑上生出小黑粒点,即病菌分生孢子器。发病初期喷洒36%甲基硫菌灵悬浮剂500~600倍液或50%多菌灵可湿性粉剂600~800倍液、60%防霉宝超微可湿性粉剂800倍液或30%碱式硫酸铜悬浮剂400倍液,每隔10天左右喷洒1次,连续防治2~3次。谷子白发病
The main diseases of millet millet white hair disease, millet rust, rice blast, millet leaf spot and millet brown disease. The main threat to leaf spot leaves of millet leaf spot. Leaf spot oval, size 2 to 3 cm, the central gray-brown, brown to reddish brown edge. Post-lesion gave birth to small black spots, that is, bacteria conidia. Early onset of 36% spraying thiophanate-methyl 500 to 600 times the liquid or 50% carbendazim WP 600 to 800 times, 60% anti-mold Po ultra-WP 800 times or 30% basic 400 times copper sulfate suspension, spraying every 10 days or so, continuous control 2 to 3 times. Milky white hair disease