Corn+Soybean Digest Logo

Maximizing preemergent herbicide applications

Preemergent herbicides can provide early weed control

April 4, 2022

1 Min Read
4-04-22 Crop_Protection_Waverly_Iowa_0003-lowres (1).jpg

Controlling weeds early is key to protecting a crop’s yield potential. Weed control programs that start with effective preplant/preemergence applications help to maximize net returns for the grower.

Weeds that germinate, emerge and grow with the crop cause the most yield loss, so getting ahead of them is essential. Preplant and preemergent herbicides can provide critical early season weed control when crops are most vulnerable to competition and weeds are easiest to treat. Preemergence herbicides can be especially effective on glyphosate-resistant weeds, such as waterhemp, Palmer amaranth and ragweed.

“Timing is important,” said Brad Mason, Pioneer Field Agronomist. “It may seem tempting to delay herbicide treatment in hopes of catching more weeds as they emerge, but it’s not advised.”

Instead, it is recommended for growers to mix up their herbicide applications and modes of treatment to help make sure they are burning down existing weeds and getting some residual protection, he said.

“Do not overuse modes of action,” Mason advised. “For an optimized herbicide program, mix it up every time you’re in that crop,” which provides better control and slows development of potentially resistant weeds.

Source: Corteva Agrisciencewhich is solely responsible for the information provided and is wholly owned by the source. Informa Business Media and all its subsidiaries are not responsible for any of the content contained in this information asset. 

Related:What are the states with the most crop acres?

Read more about:

Subscribe to receive top agriculture news
Be informed daily with these free e-newsletters

You May Also Like