Spring corn borers mainly damage crops such as corn, sorghum, wheat and millet, and suck sap from adult nymphs and nymphs. Clusters of locusts at the seedling stage cluster on the back and leaves of the leaves to cause damage. Light causes poor corn growth, and plants are seriously damaged. Growth stagnates, even dead seedlings. In addition, corn dwarf mosaic virus disease can also be transmitted, resulting in varying degrees of reduced production.
Specific prevention and control measures are as follows: First, we must pay attention to the number of weeds, weeds, grasshoppers and grasshoppers in corn seedling stage. Try to avoid chemical control or choose pesticides that are harmless to natural enemies. The second is to control before the locust bloom: 1, spray, 10-15 grams of 10% each 10% of imidacloprid wettable powder per 667 square meters, add water 30 kilograms; 2, the root zone application of 40% Xin per 667 square meters Sulphur-containing EC 100-150 ml, mixed with fine soil 10-15 kg, was planted in the trench around the plant root zone at the initial stage of corn borer.
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