To treat larger areas, such as athletic fields, golf courses and parks, mow lawns 1 to 1-1/2 inches high before treatment. Mix 1-1/3 fluid ounces (8 teaspoons) of MSMA 6 Plus Herbicide in 2-1/2 gallons of water and apply to an area of 1,000 square ft. Spray thoroughly to wet all undesirable plants.
Do you use a surfactant with MSMA?
MSMA Target 6 Plus is a selective, post-emergent crabgrass control product with 48.3% MSMA as its active ingredient. This product is a combination of liquid herbicide and surfactant blend.
Is MSMA banned?
The EPA had reached an agreement with those companies to ban most uses of their herbicide by the end of last year. But the agreement was conditioned on the EPA’s completing its scientific review. The delay by Congress caused the EPA to suspend its ban. The weed killer, called MSMA, remains on the market.
What is MSMA good for?
MSMA is a broad spectrum herbicide used to control grasses and broadleaf weeds. It can only be used on cotton, sod farms, golf courses, and highway rights-of-way, and cannot be used in Florida except for on cotton in certain counties. On this page: Background — Organic arsenical pesticides.
Will MSMA hurt Bermuda grass?
The main selective weed killer for Bermuda is MSMA or DSMA. These arsenicals are good on grassy weeds and smutgrass. They can be tank- mixed with metribuzin or 2,4-D if broader control is necessary. To improve control and minimize Bermuda discoloration, repeat applications at the lowest recommended rate are necessary.
When should you spray MSMA?
Herbicides containing MSMA are most effectively applied when grassy weeds such as crab grass and Dallis grass have emerged in the early spring and are actively growing. Repeat applications may be required through the late spring and summer.
Can you mix MSMA and 2,4-D together?
For superior post-emergent control over crabgrass, dallisgrass, sandburs, clover and many other tough weeds in sensitive warm-season turf, this MSMA and 2, 4-D combination is top notch. Follow label instruction and make two applications 20 days apart.
What temperature do you apply MSMA?
Apply during warm weather when temperature is between 80°F and 90°F. Do not water turf for at least 24 hours after application. Turfgrass may be temporarily discolored. Bermudagrass, Bluegrass, and Zoysiagrass have shown tolerance if this product is properly applied.
Can you mix MSMA and Roundup?
MSMA often antagonized efficacy of glyphosate and glufosinate on several broadleaf and grass weeds. Thus, MSMA is not compatible in tank mixtures with either glyphosate or glufosinate.
What can I use instead of MSMA?
Residential DIYers that are looking for an alternative that can deliver effective weed control as an alternative to MSMA can try msm turf herbicide or 2,4-D amine selective weed killer.
Why is MSMA banned for residential use?
MSMA contains an organic form of arsenic that is relatively nontoxic. However, in an inorganic state, arsenic is highly toxic. And in 2006, water samples from some golf courses in Florida tested high in arsenic, which prompted the EPA to cancel the registration for ag use.
What is the difference in MSM and MSMA?
MSMA is monosodium methyl arsenate (contains arsenic) whereas MSM is metsulfuron-methyl. MSM is only active against broadleaf plants and not grasses.
Is MSMA safe around trees?
Post-Emergence Grass Killers – This group of herbicides is composed of arsonates such as MSMA and DSMA which are applied to turf for post-emergent control of crabgrass and other annual grasses. Arsonates are not root- absorbed and are safe around woody vegetation.
Is MSMA safe for bees?
Six herbicides, paraquat, MAA, MSMA, DSMA, hexaflurate, and ca- codylic acid were highly toxic to the bees at concentrations of 100 and 1,000 ppm.
How much MSMA do you mix to a gallon of water?
Mix a stronger concentration of MSMA herbicide when spraying mature weeds or in weather between 75 degrees and 90 degrees Fahrenheit. Use 2 1/2 tbsp. or 1 1/4 fluid oz. of herbicide for each gallon of water. This will cover a 250-square-foot area.
How do you apply MSMA to Bermuda grass?
In order to control crabgrass and sedges effectively, you need to apply MSMA twice at an interval of 5 to 7 days. Dallisgrass requires five applications of MSMA in 5 to 7 day intervals. Apply these herbicides only when weeds are present on the soil and when the grass is actively growing and not suffering from drought.
Is MSMA safe for St Augustine?
With heavy infestations you may have to use more than one application. It is one of the most effective products and is safe on all lawn grasses, including St. Augustine and Centipede. The older recommendation is Image plus MSMA.
