针对性地巧用药剂,抓住关键时期,便可在防治玉米病害的同时达到治病增产一举两得的目的。玉米纹枯病、玉米大斑病、小斑病这三大病害在玉米全生育期均可发生,而以后期较为严重,尤其是拔节至灌浆期。所以防台玉米病害要抓住玉米幼苗期、拔节期和灌浆期这三个关键时期。大家可以 Clever use of targeted drugs, to seize the critical period, we can prevent and cure corn diseases at the same time achieve the purpose of treating double benefit. Corn sheath blight, corn leaf spot disease, small spot disease, the three major diseases can occur during the whole corn growth period, but later more serious, especially from jointing to filling stage. Therefore, preventing corn disease should seize corn seedling stage, jointing and filling of these three key period. Everyone can