Corn aphid control methods

1. Seed dressing with chemicals

The so-called seed mixing with pesticides means mixing an appropriate amount of pesticides and seeds together before planting, and then sowing. The agent protects the seeds, and this is also the first coating. After the seeds germinate in the later stage, spray the medicine once and coat them twice in a heart-shaped pattern, which can effectively prevent aphids.

2. Spraying and fertilizing

When corn is infested with aphids, the pests should be brushed off with a brush as soon as possible, and then imidacloprid and cypermethrin should be sprayed as soon as possible, once every week. About three or four times will be enough to control the problem. In addition, spraying does not have to be done only when there are insect pests. You can also control insect pests by mixing an appropriate amount of pesticide into the fertilizer every time you apply it.

3. Improve the environment

When there is aphid infestation, in addition to spraying pesticides for prevention and control, the environment must also be improved. The disease is usually caused by high temperature or poor ventilation. Weeding should be done frequently to ensure ventilation, which can effectively reduce the damage caused by aphids. In addition, it is best to plant it in a place with good light. The chance of infection by aphids will be reduced if the light is sufficient.