Prime Source Meso 4SC Select Herbicide Help - Questions and Answers

Prime Source Meso 4SC Select Herbicide

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Prime Source Meso 4SC Select Herbicide

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Asked by Mark from Kearney, Ne

10/02/2018

Q

Is Prime Source Meso 4SC Select basically just a generic Tenacity?
The active ingredient is the exact same.

A

Prime Source Meso 4SC Select does contain the same active ingredient as Tenacity and is currently a more economical choice.

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75 of 78 people found this answer helpful.
Asked by Howard

03/20/2018

Q

Is Prime Source Meso 4SC Select for spot application only, or can it be used over the entire lawn as a broadcast spray?

A

Prime Source Meso 4SC Select can be used as either a spot or a broadcast application. Please consult the product label for complete application instructions.

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35 of 41 people found this answer helpful.
Asked by Kenny from Minooka, Il

08/19/2019

Q

What is the mix rate when using a 4 gallon backpack sprayer to use Prime Source Meso 4SC Select as a pre-emergent for seeding?
The label mentions acres and a 30 gallon tank.

A

You can apply Prime Source Meso 4SC at 5-8 oz per Acre for pre-emergent control, which breaks down to 0.11 – 0.18 oz, or 2/3 tsp to 1 tsp per 1000 sq ft. Be sure that you check the more detailed rates on the product label for your specific turfgrass since some grasses require the lower applicatio…
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You can apply Prime Source Meso 4SC at 5-8 oz per Acre for pre-emergent control, which breaks down to 0.11 – 0.18 oz, or 2/3 tsp to 1 tsp per 1000 sq ft. Be sure that you check the more detailed rates on the product label for your specific turfgrass since some grasses require the lower application rates. Usually you will use about 1 gallon of water per 1000 sq ft with a backpack sprayer but be sure you water-in your pre-emergent application after it is made.

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33 of 43 people found this answer helpful.
Asked by John from Toronto, Canada

09/19/2019

Q

I only need a very small amount per season. What is the shelf-life of Prime Source Meso 4SC Select?

A

Prime Source Meso 4SC Select (Generic Tenacity Herbicide) will keep for 3-5 years from the date of purchase if stored away from extreme temperatures.

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28 of 28 people found this answer helpful.
Asked by Carolyn from Thornville

08/19/2019

Q

After Meso 4SC has worked can you reseed your lawn?
Want to do all this early fall.

A

Yes, you can reseed anytime after apply Prime Source Meso 4SC as long as you are seeding with a type of grass listed as tolerant on the product label.

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26 of 28 people found this answer helpful.
Asked by Rita from Berlin, Ct

08/25/2019

Q

I will be using your Prime Source Meso 4SC Select (Generic Tenacity Herbicide) as a post-emergent. How soon can I mow the lawn before applying?

A

It is recommended that you do not mow 2 days before or 2 days after the application of Prime Source Meso 4SC Select (Generic Tenacity Herbicide).

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12 of 12 people found this answer helpful.
Asked by Greg from Santa Rosa Beach, Fl

08/19/2019

Q

Is it safe to spray Prime Source Meso 4SC Select on my Empire Zoysia lawn?

A

Prime Source Meso 4SC Select is not labeled for zoysiagrass.

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7 of 8 people found this answer helpful.
Asked by Jeffrey from Omaha Nebraska

05/07/2021

Q

How soon after applying Prime Source Meso 4SC Select should you apply water?

A

If you are applying Prime Source Meso 4SC Select (Generic Tenacity Herbicide) as a post-emergent herbicide (to kill existing weeds), then you should wait at least 24 hours before watering the treatment area. If you are applying this product as a pre-emergent herbicide, then you should irrigate the a…
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If you are applying Prime Source Meso 4SC Select (Generic Tenacity Herbicide) as a post-emergent herbicide (to kill existing weeds), then you should wait at least 24 hours before watering the treatment area. If you are applying this product as a pre-emergent herbicide, then you should irrigate the application with 1/4" - 1/2" of water immediately after application for best results.

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7 of 8 people found this answer helpful.
Asked by Kenneth from Lewes

08/11/2019

Q

Does Prime Source Meso 4SC Select kill Dallisgrass and quackgrass?

A

Prime Source Meso 4SC Select is not labeled for dallisgrass or quackgrass. Please provide your desired turf species for alternate recommendations to fit your needs.

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6 of 9 people found this answer helpful.
Asked by Jim from Blaine, Mn

08/14/2019

Q

Will Meso 4SC work with Methylated Seed Oil as a surfactant?

A

The Prime Source Meso 4SC Select (Generic Tenacity Herbicide) F Label product label suggests the product be applied with any non-ionic surfactant.

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4 of 5 people found this answer helpful.
Asked by Joanne from Fruitland Park, Fl

04/07/2021

Q

Can Prime Source Meso 4SC Select (Generic Tenacity Herbicide) be used on zoysia grass?
Very small piece of property with zoysia. Probably less than 1/4 acre. How do I mix it, if I can, in a 3 gallon sprayer?

A

Prime Source Meso 4SC Select is not labeled as safe for use on for zoysiagrass. If you would like to tell us some of the weeds you are targeting, then we can recommend a product that is appropriate for your needs.

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3 of 5 people found this answer helpful.
Asked by Miguel from Conroe, Tx

10/22/2019

Q

Can I use Prime Source Meso 4SC Select to target nimblewill and crabgrass in St Augustine turf?
Which product should I use?

A

You should not use Prime Source Meso 4SC on your St. Augustine home lawn. This product can be used at reduced rates (no more than 4 oz per Acre) on St. Augustine that is grown for sod only, unfortunately. Your only real option in a residential area would be to use a non-selective herbicide such as …
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You should not use Prime Source Meso 4SC on your St. Augustine home lawn. This product can be used at reduced rates (no more than 4 oz per Acre) on St. Augustine that is grown for sod only, unfortunately. Your only real option in a residential area would be to use a non-selective herbicide such as Killzall or another non-selective herbicide to spot treat the Nimblewill to kill it directly, and then replant St. Augustine in those areas. For crabgrass, you can use Atrazine or Blindside to suppress the crabgrass, and Dimension as a pre-emergent for it in the spring.

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3 of 6 people found this answer helpful.
Asked by Airon from Inland Empire, Ca

01/18/2021

Q

How long do I have to wait to let pets roam around the area sprayed with Meso 4SC?

A

Prime Source Meso 4SC Select is safe to use in a yard where pets will frequent as long as they are out of the area during the application. They can safely return after the area has dried.

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2 of 2 people found this answer helpful.
Asked by Jimmy from Norway

07/07/2022

Q

What is the time frame you can apply Prime Source Meso 4SC Select (Generic Tenacity Herbicide) before rain or watering?

A

Prime Source Meso 4SC Select (Generic Tenacity Herbicide) should be applied when there is no rain in the forecast for at least 24 hours following the application.

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2 of 2 people found this answer helpful.
Asked by Matt from Richmond, Va

09/27/2019

Q

Can Prime Source Meso 4SC Select have residual impact that turns some seedlings white?
I used Prime Source Meso 4SC Select in two applications before fescue seeding with the last application being about 5 days prior to seeding. I'm noticing one small patch of seedlings turning white about 2.5 weeks after the tenacity application and 1.5 weeks after seeding. Could this be a residual impact of Meso or do I have other potential issues? The white seedlings are very localized to a spot the size of my hand. I have been watering several times per day but this isn't the wettest part of my yard (although it is relatively shady).

A

Prime Source Meso 4SC Select also has pre-emergent activity up to 30 days so it can cause whitening on new seedlings when applied as a broadcast application. You can try to eliminate the whitening with a Chelated Iron product.

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2 of 3 people found this answer helpful.
Asked by Luis from Kernersville, Nc

10/12/2022

Q

Will Prime Source Meso 4SC Select (Generic Tenacity Herbicide) prevent new Tall Fescue with KBG mix seed I planted a week ago?

A

As long as the seeding and application of Prime Source Meso 4SC Select were done within a week of each other, it should not prevent germination of your grass.

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1 of 1 people found this answer helpful.
Asked by Ron from Buffalo My

07/29/2022

Q

What are the mixing ratios

A

You can apply Prime Source Meso 4SC at 5-8 oz. per acre for pre-emergent control, which breaks down to 0.11 - 0.18 oz. or 2/3 tsp to 1 tsp per 1000 sq. ft. Be sure that you check the more detailed rates on the product label for your specific turfgrass since some grasses require the lower applic…
Read Full Answer »
You can apply Prime Source Meso 4SC at 5-8 oz. per acre for pre-emergent control, which breaks down to 0.11 - 0.18 oz. or 2/3 tsp to 1 tsp per 1000 sq. ft. Be sure that you check the more detailed rates on the product label for your specific turfgrass since some grasses require the lower application rates. Usually you will use about 1 gallon of water per 1000 sq. ft. with a backpack sprayer but be sure you water-in your pre-emergent application after it is made.

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1 of 1 people found this answer helpful.
Asked by Arsal from Charlotte, Nc

03/21/2021

Q

Can I apply 26-2-13 fertilizer immediately after 2nd application of Meso 4SC?
Just did my second application of Meso 4SC with a 3 week gap. Lawn has lots of white patches so Meso 4SC definitely worked. I am not thinking of applying a 26-2-13 Scott's granular fertilizer to help the grass recover faster (and hopefully make lawn green). Would there be any issues doing this?

A

There should be no issues applying Prime Source Meso 4SC Select around the same time as a fertilizer as long the label on the fertilizer does not state that it cannot be used with herbicides.

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1 of 1 people found this answer helpful.
Asked by Sharon from Sylva, Nc

02/23/2021

Q

What is the shelf life of Prime Source Meso 4SC Select (Generic Tenacity Herbicide)?

A

Prime Source Meso 4SC Select (Generic Tenacity Herbicide) will keep for 3-5 years from the date of purchase if stored away from extreme temperatures and direct sunlight.

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1 of 1 people found this answer helpful.
Asked by Toby from Waterford, Ct

02/23/2021

Q

Can I use Prime Source Meso 4SC Select (Generic Tenacity Herbicide) in conjunction with overseeding this type of grass?
Looking to overseed with the following blend: Cardinal II Creeping Reed Fescue (25%) Gladiator Hard Fescue (25%) Radar Chewings Fescue (25%) Mazama Kentucky Bluegrass (25%) This grass is expensive, so I don't want to do it if germination will be impacted.

A

According to the product label for Prime Source Meso 4SC Select (Generic Tenacity Herbicide):

The labeled list of tolerant species of turfgrass for this product is as follows:

Kentucky bluegrass (Poa pertensis)
Centipedegrass (Eremochloa ophiuroides)
Buffalograss (Buchloe dactyloides)�

…
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According to the product label for Prime Source Meso 4SC Select (Generic Tenacity Herbicide):

The labeled list of tolerant species of turfgrass for this product is as follows:

Kentucky bluegrass (Poa pertensis)
Centipedegrass (Eremochloa ophiuroides)
Buffalograss (Buchloe dactyloides)
Tall fescue (Festuca arundinacea)
Perennial ryegrass* (Lolium perenne)
Fine fescue* (creeping red, chewings and hard) Festuca spp.
St. Augustinegrass* (grown for sod) (Stenotaphrum secundatum) *DO NOT exceed 5 fl. oz. per acre per application to perennial ryegrass, fine fescues, or mixed stands that consist of >50% perennial ryegrass and/or fine fescue.

For any specific product questions not outlined on the product label, you may wish to contact the manufacturer Prime Source directly at 800-247-8013, or via email at [email protected]. You may also want to utilize your local cooperative extension office for additional questions.

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1 of 1 people found this answer helpful.