根据玉米螟的生活习性和危害规律,发现玉米螟发生危害初期在7月初,发生危害盛期在7月中、下旬。受虫蛀的植株(母本)的茎叶、果穗都会严重阻碍水分和养分的传输,水分和养分的传输一旦受阻,则会造成种子子粒干物质的积累受阻,致使子粒灌浆不实、千粒重下降、色泽差、植株早衰。父本茎叶被虫蛀后,会使雄穗水分、养分传输受阻而发育不良,雄 According to the life habits of corn borer and the law of harm and found that the initial occurrence of corn borer damage in early July, the occurrence of the peak in mid-July, late. Insect-boring plants (female) stems and leaves, the ear will seriously impede the transfer of water and nutrients, moisture and nutrient transport once blocked, it will result in the accumulation of dry seeds of seed particles blocked, resulting in grain filling false, grain weight decreased Poor color, plant premature aging. Paternal stems and leaves were moth-eaten, will make the tassel moisture, nutrient transport blocked and stunted, male