What medicine does the corn bore insect spray

During the growth of corn, there will be all kinds of insect pests, and the drill bug is the most common one. What kind of medicine does the corn drill bug spray?

First, what kind of medicine is sprayed by corn heart worms?

Corn drill can be sprayed with phoxim, methamidophos, chlorpyrifos, dichlorvos, trichlorfon and other insecticides. Generally in the heart leaf stage, the heart leaf can be perfused with methamidophos and cypermethrin 1000 times diluted at 7:1. 50% dichlorvos 500-fold solution or 90% trichlorfon 800-fold solution can be used to spray filaments and ears at panicle stage.

Second, what are the hazards of corn drill worms?

Corn borer (borer), commonly known as arrow worm, is a common and serious pest on corn. The aboveground part of the corn plant can be harmed at all growth stages, feeding on leaves, ears, male ears, and boring stems, causing damage to plant growth, reducing nutrients, minerals and water to the ears, resulting in a 10-30% reduction in yield, which is a great threat to corn production. The first instar larvae drill into the heart leaves, leaving many horizontal holes after the leaves are unfolded; the older larvae can bite the filaments, stems and the base of the male ear into the ear axis and bite the corn grain at any time. Ostrinia furnacalis overwinters with more than 4th instar larvae on the stem, ear axis and rhizome of the host plant.