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春季小麦返青后,做好中后期管理对小麦获得高产至关重要。小麦中后期管理的关键是防治病虫害,要根据病虫发生情况、品种抗性,确定防治对象和时期,注意选用高效低毒农药防治,提倡综合防治,推广杀虫剂、杀菌剂混合使用,减少用药次数,降低用药成本,达到最佳防治效果,最终确保小麦稳产高产。1小麦条锈病1.1为害症状主要发生在叶面,成熟时表皮开裂一圈,别于条锈病。必要时可把条锈菌和叶锈菌的夏孢子分别放在两个
Spring wheat back to green, do a good job in the late management of wheat yield is essential. The key to middle and late wheat management is to control pests and diseases. According to the pest occurrence and varieties resistance, the object and period of prevention and control should be determined. Attention should be paid to the prevention and control of high and low toxicity pesticides, the promotion of comprehensive prevention and treatment, the promotion of mixed use of insecticides and fungicides, Medication frequency, reduce medication costs, to achieve the best control effect, and ultimately ensure stable and high yield of wheat. 1 wheat stripe rust 1.1 damage symptoms occur mainly in the foliage, mature epidermis cracking circle, not in stripe rust. When necessary, stripe rust and leaf rust spores were placed on two