Per the MSM Turf Herbicide product label on Fescue: This product may temporarily stunt tall fescue, cause it to turn yellow, or cause seedhead suppression.
To minimize these symptoms, take the following precautions:
• Do not use more than 4/10 ounce of MSM Turf Herbicide per acre • Use a tank mix with 2,4-D
• Use the lowest specified rate for the target weeds
• Use a non-ionic surfactant at 1/2 to 1 pint per 100 gallons of spray solution
• Make application later in the spring after the new growth is 5 to 6 inches tall, or in the fall
• Do not use a surfactant if liquid nitrogen is used as a carrier
• Do not use a spray adjuvant unless it is a non-ionic surfactant
To MSM turf herbicide you will need to know your spray rate, or how much water you are applying to each 1,000 sq.ft. or lawn Mark off an area of 1,000 sq.ft. and spray water over this area to determine your spray rate. Once you know your spray rate, you will apply 0.2 to 0.6 grams per 1,000 sq.ft.
Unfortunately, since poa trivialis, fescue, and Kentucky bluegrass are all cool season grasses, there is not a selective herbicide that would kill the poa trivialis without also killing the other grasses. We suggest spot treating with a non-selective like Roundup and then reseeding after 2 weeks.
Quali-Pro MSM Turf Herbicide is not labeled for burr weeds of any kind. You may want to look at a product like Trimec Classic, which lists several burr weeds on the label.
Per the product label: Use up to 1 ounce MSM Turf Herbicide per acre as a broadcast spray when applying to established grasses in rangeland 1/10 of an ounce for new seedings. For Spot Applications, use 1 ounce per 100 gallons of water. Do not apply more than 1 2/3 ounces per acre per year. The spot rate breaks down to approz 0.01 oz per gallon.
Unfortunately, there is no easy way to measure 0.01 oz of Quali-Pro MSM Turf Herbicide to make a 1-gallon solution. Per the manufacturer, their recommended rate to use for spot applications is of 0.1 oz per 4 gallons of water, which can be easily measured with their measuring device provided.
The product label does not mention any of those actives as tested for tank mixes. It does state: Tank mixes with other registered herbicides and MSM Turf Herbicide should be tested for compatibility before full scale mixing. Use mechanical or bypass agitation to thoroughly mix the spray suspension. It is not necessary to premix this product with water in a separate container prior to adding it to the spray tank. This product should always be added to the tank first, before any other herbicides or adjuvants.
Per the product label for MSM Turf Herbicide: A repeat application may be required in 4 to 6 weeks for some weeds. Refer to the label for complete instructions regarding your target weed(s).
Quali-Pro MSM Turf Herbicide can be used on Centipede lawns but is NOT labeled for Torpedograss. Solitare Herbicide is labeled to suppress Torpedograss and is listed for many other broadleaf weeds and can be applied to established Centipede lawns. It will not harm Centipede as long as you apply while temps stay below 85 degrees and is applied as labeled. Solitaire Herbicide should be applied when the temperature is between 55-85 degrees Fahrenheit when weeds start actively growing.
MSM Turf Herbicide rate for dollarweed is 0.5 to 1 oz per acre. Per the product label, control of Dollarweed may require an additional application after 4-6 weeks. You will see best results using post-emergent herbicides when the target weeds are young and actively growing. You may see some stunting or chlorosis of St. Augustine turfgrass after applying this product.
MSM Turf Herbicide treated areas are safe to return to once dry. You will not be tracking the product in the house after it has dried when you mow. There is a great article here that you can review for the soil residual though.
It could take 1-3 weeks to notice results from an application of MSM Turf if used as directed. Specific timing of complete plant death can vary.
The usage rates for Quali-Pro MSM Turf Herbicide will vary depending on what type(s) of weeds you are treating for, what type of grass you have, whether you will be spot treating or broadcast spraying, and how much area you need to cover. Please refer to the product label for complete application instructions.
With MSM turf herbicide you will need to know your spray rate, or how much water you are applying to each 1,000 sq.ft. or lawn Mark off an area of 1,000 sq.ft. and spray water over this area to determine your spray rate. Once you know your spray rate, you will apply 0.2 to 0.6 grams per 1,000 sq.ft.
MSM Turf Herbicide is not labeled to treat quackgrass. Unfortunately, we do not currently carry any products that are labeled for quackgrass that are safe for use in your Kentucky Blue grass. We would recommend spot treating with something like Roundup QuikPRO and reseeding the areas. Becareful to avoid getting the product on desirable grass. If most of the lawn has been affected by quackgrass, the only sure fire way to get rid of it is to spray the entire lawn with Roundup. Spray when the lawn is growing actively, preferably in the spring. The treatment will kill the lawn grass as well as the quackgrass. After about two weeks, you may begin the replanting.
On St. Augustine grass, you will use 0.25 – 1.0 oz of MSM Turf Herbicide per Acre (0.125 – 0.5 oz per ½ Acre), depending on the specific weeds you are targeting per the product label. This should be applied in sufficient water, usually at least 1 gallon of water per 1000 sq ft you are treating.
MSM Turf Herbicide is not labeled to target nutsedge. We do offer other products specifically for nutsedge in established listed turf such as Sedgehammer.
MSM Turf Herbicide is not labeled to kill rescuegrass. Please take a look at Certainty Herbicide as it is labeled to kill this weed and can be used in St. Augustinegrass. Please be sure to carefully read the product label before application.
MSM Turf Herbicide is not labeled to control Poa Annua. A product like Certainty Herbicide would be a great option for Poa Annua in St. Augustine turf.
MSM Turf Herbicide is only applied to grasses that are well established. This means it has to be at least 4 weeks from plugging/seeding or be mowed at least twice before you can apply, otherwise you could injure the new grass.
