What specific herbicide is effective for controlling purple nutsedge

Purple nutsedge is a malignant weed that grows in crops such as corn and sugarcane, and it is also relatively difficult to control. So what are the specific herbicides for controlling purple nutsedge?

1. MCPA

It has a certain effect on purple nutsedge in corn, wheat, and other crops. When treating, it is best to do so before the purple nutsedge tubers swell. When treating wasteland, MCPA · glyphosate or 2,4-D · glyphosate can also be used, and the control effect on purple nutsedge is still relatively good. In corn fields, when the corn is relatively tall, MCPA · glyphosate can be used for directed spraying to control purple nutsedge.

2. Bentazone

Bentazone is relatively widely used on crops such as rice, and is registered on rice, corn, wheat, sorghum, sugarcane, and others. Bentazone has a good effect on many kinds of sedges in both paddy fields and dry fields, and can be applied in both wasteland and dry land. Bentazone is a contact herbicide, and the weeds die relatively quickly. It is recommended to use it when purple nutsedge is young.

3. Halosulfuron-methyl

A sulfonylurea herbicide, it can be absorbed through the roots, stems, and leaves of weeds. Generally speaking, after poisoning, the weeds begin to die after 10 days. At present, it is used more on crops such as wheat, corn, sugarcane, and rice. Halosulfuron-methyl has a specific effect on purple nutsedge and is safe for eggplant and pepper.

4. Sulfometuron-methyl sodium salt

It is generally used to control purple nutsedge after sugarcane emergence. It is only suitable for dryland sugar cane, not for fruit cane. Without testing, it must not be used on other crops.

5. Imazapic

It effectively controls and inhibits sedges in sugarcane fields. This ingredient does not have a strong killing effect on purple nutsedge, but it has a certain inhibitory effect. It is not recommended for use on crops such as vegetables, corn, and soybeans.

Purple nutsedge should be treated early. After tubers form, it becomes relatively difficult to control, so control needs to be done early.