Alligare MSM 60 Herbicide

Alligare MSM 60 Herbicide

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Product Overview

Alligare MSM 60 Herbicide is a dispersible granule specially formulated to provide post-emergent control of broadleaf weeds in vegetation, non-crop industrial sites, forestry, and in and around roadsides and railways. It contains metsulfuron-methyl as its active ingredient which is highly effective in killing broadleaf weeds and some annual grasses. It also suppresses some types of broadleaf weeds and grasses in conifer plantations. The Alligare MSM 60 Herbicide is a broad-spectrum herbicide that kills more than 100 species of weeds and brush including clover, dandelion, mustard, sowthistle, tansy, dogfennel, aspen, cottonwood, elm, oaks, spruce, and willow. It may be used in forestry, vegetation control in and around railways or roadsides, and non-crop industrial sites. It offers versatility because it is an excellent tank-mix partner to other products or can simply be mixed with water. Convenient and easy to apply plus, it is cost-saving and economical with its low use rates.

Available sizes:

  • Alligare MSM 60 Herbicide - 8 oz. 
  • Alligare MSM 60 Herbicide - 16 oz. 

Features and Specs

Active Ingredient Metsulfuron Methyl - 60.0%
Target pests Broadleaf Weeds and Brush/Woody Species.
For use in Non-crop industrial sites, forestry, and vegetation control in and around roadsides/railways.
Application Apply 2 to 4 oz per acre. Transplant the following planting season.
Pet safe Yes, if used as directed on the label.
Formulation Dry Flowable Formula.
Special Features Excellent tank mix partner.
Shipping Weight 1.00 lbs
Manufacturer Alligare LLC (Mfg. Number: 31317)
UPC 192702313172
EPA Registration 81927-7



  1. Fill the tank ¼ to 1/3 full of water.
  2. While agitating, add the required amount of Alligare MSM 60.
  3. Continue agitation until the Alligare MSM 60 is fully dispersed, at least 5 minutes.
  4. Once the Alligare MSM 60 is fully dispersed, maintain agitation and continue filling the tank with water. Alligare MSM 60 should be thoroughly mixed with water before adding any other material.
  5. As the tank is filling, add tank mix partners (if desired) then add the necessary volume of nonionic surfactant. Always add surfactant last.
  6. If the mixture is not continuously agitated, settling will occur. If settling occurs, thoroughly re-agitate before using.
  7. Metsulfuron Methyl spray preparations are stable if they are pH neutral or alkaline and stored at or below 100 degrees F.
  8. If Alligare MSM 60 and a tank mix partner are to be applied in multiple loads, pre-slurry the Alligare MSM 60 in clean water prior to adding to the tank. This will prevent the tank mix partner from interfering with the dissolution of the Alligare MSM 60.


Spray equipment must be cleaned before Alligare MSM 60 is sprayed. Follow the cleanup procedures specified on the labels of previously applied products. If no directions are provided, follow the six steps outlined below.

Before Spraying Crops Other Than Wheat, Barley, Fallow, Pasture or Rangeland:

  1. Drain tank; thoroughly rinse spray tanks, boom, and hoses with clean water. Loosen and physically remove any visible deposits.
  2. Fill the tank with clean water and 1 gal of household ammonia* (contains 3?tive) for every 100 gallons of water. Flush the hoses, boom, and nozzles with the cleaning solution. Then add more water to completely fill the tank. Circulate the cleaning solution through the tank and hoses for at least 15 min. Flush the hoses, boom, and nozzles again with the cleaning solution, and then drain the tank.
  3. Remove the nozzles and screens and clean separately in a bucket containing cleaning agent and water.
  4. Repeat step 2.
  5. Rinse the tank, boom, and hoses with clean water.
  6. If only Ammonia is used as a cleaner, the rinsate solution may be applied back to the crop(s) listed on this label. Do not exceed the maximum labeled use rate. If other cleaners are used, consult the cleaner label for rinsate disposal instructions. If no instructions are given, dispose of the rinsate on-site or at an approved waste disposal facility.


Apply when weeds are less than 4” tall or in diameter and are actively growing. See specific directions for each weed type.

Effectiveness may be reduced if rainfall occurs within 4 hrs after application.

Grain Sorghum

1/20 oz. per acre, plus 1/4 lb. active ingredient 2,4-D amine per acre

  • Pigweed species
  • Puncturevine
  • Velvetleaf

Cereals, Pasture, Rangeland, and Fallow 1/10 oz. per acre

  • Blue/purple mustard
  • Bur buttercup (testiculate)
  • Coast fiddleneck (tarweed)
  • Common chickweed
  • Common purslane
  • Conical catchfly
  • Cow cockle
  • False chamomile
  • Field pennycress (fanweed)
  • Filaree
  • Flixweed
  • Groundsel (common)
  • Henbit
  • Kochia
  • Lambsquarters (common slim leaf)
  • Mayweed chamomile
  • Miners lettuce
  • Pigweed (redroot, smooth, tumble)
  • Plains coreopsis
  • Prickly lettuce
  • Russian thistle
  • Shepherd’s purse
  • Small seed false flax
  • Smartweed (green, Ladysthumb, pale)
  • Snow speedwell
  • Tansymustard
  • Treacle mustard (Bushy Wallflower)
  • Tumble/Jim Hill mustard
  • Volunteer sunflower
  • Waterpod
  • Wild mustard

Additional Weeds in Pasture/Rangeland Only 1/10 to 2/10 oz per acre

  • Bitter sneezeweed
  • Buttercup
  • Carolina geranium
  • Common Broomweed
  • Common mullein
  • Curly Dock
  • Dandelion
  • Marestail
  • Plantain
  • Wild garlic
  • Woolly croton

2/10 to 3/10 oz. per acre

  • Annual Marshelder
  • Blackeyed-Susan
  • Buckbrush
  • Burclover
  • Common yarrow
  • Dogfennel
  • Horsemint (beebalm)
  • Musk thistle
  • Pensacola bahiagrass
  • Purple scabious
  • Western Snowberry
  • Wild carrot

4/10 oz. per acre

  • Serecia lespedeza

Weed Suppressed

Wheat, Barley, Pasture, Rangeland, and Fallow 1/10 oz. per acre

  • Canada thistle
  • Common sunflower
  • Corn gromwell
  • Knotweed (prostrate)
  • Sowthistle (annual)
  • Wild buckwheat

Brush Suppressed (Pasture and Rangeland Only)3/10 oz. per acre

  • Blackberry
  • Dewberry
  • Multiflora rose

Weeds/Brush Suppressed with Spot Application (Pasture/Rangeland only) 1 oz. per 100 Gal. of water

  • Blackberry
  • Canada thistle
  • Dewberry
  • Multiflora rosa

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Questions & Answers

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Is Alligare MSM 60 Herbicide safe on St Augustine grass?

No, Alligare MSM 60 Herbicide is not labeled to be used on St. Augustine turf.  

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Can Alligare MSM 60 Herbicide be used on zoysiagrass?
Alligare MSM 60 Herbicide

 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!

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Does Alligare MSM 60 Herbicide kill Bahiagrass?

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.

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