According to the habits and hazards of corn borer, it was found that the early occurrence of corn borer damage in early July, the occurrence of harm in the middle and late July. The stems, leaves and ears of the insect-infested plants (maternal) will seriously impede the transmission of water and nutrients. Once the transmission of water and nutrients is blocked, the accumulation of dry matter in the seeds will be impeded, resulting in imprecise grouting and a decrease in grain weight. , poor color, premature aging of plants. After the stems and leaves of the male parent are infested, the water and nutrients of the tassel are hindered from transmission and development is impaired, and the tassels are severely aborted, pollen viability is weakened, and the amount of pollen is reduced. In addition, if the insects are caught in tassels, the tassels will be directly cut off and the pollination will be poor, or the ability to loose powder will be lost. The traditional control method of corn borer is to use 3911 arsenopyrite to prevent and control. Although this control method has a certain control effect, it has many disadvantages. First, the disposition of arsenopyrite is not well controlled; the second is that it is not easy to grasp the best time for prevention and treatment; and third, the effect of rain is lost and the control effect cannot be achieved; It is 3911 toxic and unsafe. 3911 Prevention and control can only be a palliative but not a permanent cure. The root cause of corn borer must be eradicated. The following methods can be used for prevention and control: 1. According to the habits of the corn borer and wintering methods, the fall winter irrigation is adopted. The autumn corn borer is larvae or pupae wintering in the stalks of corn and oil sunflower, and the environment of the corn borer is destroyed when the autumn pours winter pours, and the insecticide effect is achieved. . 2. Before the emergence of the spring generation of corn borer, it is necessary to destroy the corn stalk left by the livestock production as early as possible. Insecticide and insect killing are the destruction of the living environment of the corn borer and have the effect of killing insects. 3. The corn stalk left behind by livestock production should be destroyed as early as possible before the birth of the spring generation corn borer. 4. During the emergence stage of corn borer, adult insects were trapped and killed by a vibration-type ultraviolet lamp. If the above three methods and carbofuran filling control can achieve a good control effect, the ultimate goal is to prevent corn seed production from dehydration, deferment and pollination, and increase production and income.