What herbicide can completely kill the roots of purple nutsedge?

Purple nutsedge often grows in cotton fields and soybean fields, affecting crop growth to a certain extent. Many farmers want to eradicate purple nutsedge. So what herbicide kills the roots of purple nutsedge?

1. What herbicide kills the roots of purple nutsedge

When controlling purple nutsedge weeds, you can use 100-150 ml of 48% bentazone, or 1-1.5 g of 75% trifloxysulfuron-sodium, or 30-40 ml of 24% imazamox, or 100 ml of 48% trifluralin, or 50 ml of 21.4% acifluorfen + 100 ml of 48% bentazone, or 60 ml of 25% fomesafen + 50-70 ml of 6.9% fenoxaprop-P-ethyl, or 1-1.5 g of 75% trifloxysulfuron-sodium, or 6-8 g of 75% halosulfuron-methyl, or 3.5-8 g of 50% carfentrazone-ethyl, or 60 g of 70.5% MCPA · carfentrazone, or 240-280 g of 38% mesotrione · ametryn · cyanazine, or 200 ml of 41% glyphosate-isopropylammonium salt, sprayed with 30-40 kg of water, which can effectively control the growth and reproduction of purple nutsedge, and most of these herbicides can rot the roots of purple nutsedge.

2. Precautions for use

1. Use according to the dosage in the instructions; using a high dosage will inhibit crop growth and may even cause herbicide damage.

2. Manual spraying should be even, careful and thorough, with no repeated spraying and no missed spraying.

3. It is best to use it on a windless sunny day or a rainless cloudy day, in the cool morning or evening, for a better effect.

4. When using herbicides, choose according to the crop, and it is best to choose one that is harmless to the crop.

5. It is recommended to add a herbicide safener when using it, which not only makes weed control safer, but can also prevent herbicide damage residues caused by improper use of herbicides, so as not to affect yield and crop quality.

Purple nutsedge grows very fast. The best approach is to focus on prevention and combine it with post-emergence weed control for comprehensive management. We hope everyone can effectively eradicate purple nutsedge.