Insect pests can seriously affect the growth of corn, and corn insecticides can effectively and safely control various pests. So if corn has been sprayed with insecticides and fungicides, do we have to spray with herbicides the next day?

First of all, it depends on what composition of pesticide was used the day before and what composition of herbicide was used the next day.

If it was a fungicide the day before to prevent disease, then it would be fine. The next day you can use the herbicide; If the insecticide was used the day before, it depends on the situation.

In one case, the post-emergence herbicide cannot be used the next day.

There are two conditions that need to be met. One is that the insecticide component is organic phosphorus. Type (such as chlorpyrifos or phoxim), the second is that the herbicide component contains nicosulfuron. When these two conditions are met, the herbicide cannot be used the next day, because it is easy to produce herbicide damage , It has an impact on corn yield. The correct way is to make a 7-day interval between the two. This is very important. I hope everyone will pay attention.

Secondly, whether herbicides can be sprayed the next day depends on changes in the weather.

If there is rain or windy weather the next day, it is not suitable to spray herbicides. Under the condition of meeting the previous one, everyone knows that rainy days are If you can’t use any pesticides, not to mention the waste, it is easy to produce phytotoxicity, and you can’t use herbicides in windy weather.

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