No, Alligare MSM 60 Herbicide is not labeled to be used on St. Augustine turf.
Alligare MSM 60 Herbicide does include Bahiagrass on the labeled list of weeds controlled, at the rate of 1/3 to 1/2 oz. per acre. Used only in Non-crop industrial sites, forestry, and vegetation control in and around roadsides/railways.
Alligare MSM 60 Herbicide works primarily as a post emergent in which there are no dormancy restrictions regarding the turfgrass. This product does offer some pre emergent control in which best results for preventing seed germination are obtained when applied to foliage after emergence or dormancy break. If trying to control pensacola bahiagrass in established Bermudagrass pasture: You will apply after green-up in the spring but before the bahiagrass seedhead formation.
For temperature restrictions when using a MSM herbicide, do not apply to turf under stress from drought, insects, disease, cold temperatures, high temperatures of above 85
should only be applied to the following areas as directed on the label: Non-crop industrial sites, forestry, and vegetation control in and around roadsides/railways. Please provide the targeted weeds for an alternate product recommendation that is safe for established zoysia lawns. We are happy to help!
Alligare MSM 60 Herbicide is a dispersible granule specially formulated to provide post-emergent control of broadleaf weeds, and is generally applied at rates of 2 to 4 oz in 10 to 40 gallons of water per acre, depending on the type of area you are treating and what you are targeting. Y
Please refer to the product label for use rates specific to your treatment and for complete application instructions, and use as directed.
Alligare MSM 60 Herbicide has rates based on how much area will be treated. The rates vary between 2 – 4 oz per acre depending on where it is being used and grass type.
Please look over the label for specific application instructions.
Some alternative recommendations would be Gordon’s Pasture Pro or PastureGard HL which are both labeled for ironweed and intended for smaller applications.
For larger coverage areas, GrazonNext would be suggested however this product does have strict haying and manure restrictions that need to be followed.
Please refer to the individual product labels for each product to determine which would work best for your applcation.
The University of Kentucky Extension Office has some other helpful information in this article HERE on controlling ironweed in grazing pastures
