Metsulfuron

Most Effective Products

MSM Turf Herbicide (Manor)
Water Dispersible Granule (WDG)
As low as $16.25
Fahrenheit Herbicide
Water Dispersible Granule (WDG)
As low as $30.00
Keith's Pro Tips

"Apply Metsulfuron directly over problem weeds and a few feet out from where the weeds are growing to prevent any seeds from spraying. Apply during calms days where rain is not in the immediate forecast"

Metsulfuron

If your turf is being invaded by broadleaf and grassy weeds, there are a number of herbicides you can consider to address the issue effectively. One such active ingredient that does a tremendous job against problem weeds is metsulfuron. Metsulfuron is popularly known as MSM and it is highly regarded in turfgrass management.

On this page we will share with you some brief info about metsulfuron, it’s mode of action and why it works so well. You can also use this page to shop our top recommended products which contain metsulfuron.

What is Metsulfuron?

Spraying Metsulfuron Herbicide in Backpack Sprayer

Metsfulfuron is known fully as metsulfuron methyl but is more commonly known by the abbreviations MSM. It is from the sulfonylurea family of herbicides and is an organic active ingredient that can deliver pre-emergent and post-emergent control of broadleaf weeds and a number of annual grasses.

Metsulfuron is a selective herbicide, meaning that it can control target broadleaf weeds, grasses, trees and invasive brush, while doing no harm to select desired grasses.

Originally this product was used on agricultural lands to remove invasive weeds around crops but then expanded into treating commercial and residential landscapes. There are some MSM-based products that are restricted-use products that can only be applied by licensed applicators.

How Does Metsulfuron Work?

Mode of Action

Metsulfuron controls weeds by halting cell division in the shoots and roots of the plant resulting in target plants dying. 

Mesulfuron control many different species of weeds but is recommended most for post-emergent control of bahiagrass, virginia buttonweed and dollarweed.

Benefits of Metsulfuron

Metsulfuron is a potent herbicide active ingredient with a very low use rate. Another advantage that metsulfuron has is that it is a selective herbicide—it will only eliminate the labeled weeds that you want gone.

Use metsulfuron for weed control on warm-season grasses such as bermudagrass, centipedegrass, st. augustine and georgia grass.

Drawbacks of Metsulfuron

Metsulfuron products that come in a dry flowable formulation will need to be agitated constantly to break apart the pieces and suspend the product properly. When its not agitated well, it may not suspend properly causing an inaccurate ratio of the active ingredient. They can also clog the sprayer if the product is not broken down well enough.

Do not use metsulfuron for weed control on cool-season grasses as the active ingredient works best on warm-season grass types. Also do not apply metsulfuron on turf that is less than a year old and ornamentals that are less than 2 years old. Oak trees are sensitive to metsulfuron so extra care is needed around the tree when applying.

Is Metsulfuron Safe?

Metsulfuron is safe to use when applied according to label directions. It is recommended that when handling metsulfuron (or any of the other chemicals we carry) to use proper personal protective equipment (PPE) before handling or applying. Gloves, goggles, long-sleeved clothing should be the minimum standard. Please refer to the label for proper safety instructions.

What To Expect

Sprayer Metsulfuron

Metsulfuron-based herbicide products will stay in the soil for several weeks after application. You should see improvement in your lawn health in 1 to 2 weeks and most weeds will be cleared after 3 weeks. Some weeds are more resilient and may require another application in 4 to 6 weeks.

Do not exceed more than 0.5 oz. per acre within a 9 month period and do not water the product in after applying.

Featured Products

MSM Turf Herbicide - MSM Turf Herbicide By Quali-Pro is similar to popular name brand Manor Herbicide. MSM Turf Herbicide kills broadleaf and grassy weeds. It is applied to ornamental turfs, lawns, and various other places that require weed control. It is ideal to use on golf courses and residential areas.

Fahrenheit Herbicide - is used to control various types of msm turfs and broadleaf weeds that destroy lawns by robbing the grass of sunlight and nutrients. Fahrenheit is a dual action weed killer that allows the active ingredient, metsulfuron-methyl, to absorb through the leaves and roots, ensuring weed eradication. It is also a selective weed killer, making it ideal to treat lawns without killing the grass.

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