Ask A Pro: 866-581-7378 Mon-Fri 9am-5pm ET Contact Us
Fast Free Shipping On Your Entire Order*
DoMyOwn - Do It Yourself Pest Control
  • Use "Spacebar" or "Enter" to expand the My Account navigation menu.
  • Use Down or Tab key to select next menu item.
  • Use Up or Shift+Tab keys to select the previous item.
  • Use Enter/Space key to visit the menu item.
  • Use Esc key to leave the submenu.
  • Use Left/Right arrow keys to allow users to navigate within the navigation links.
  • Use Down arrow key to expand the submenu and up/down arrow keys to navigate within the submenu.
  • Use Enter/Space key to select the menu/submenu items.
  • Use Esc key to leave the submenu.

New Items Added! Save Up to 30% on Select Lawn & Pest Control Products- Shop Now »

Prime Source Meso 4SC Select Herbicide - Questions & Answers

Learn more about Prime Source Meso 4SC Select Herbicide

Ask a Question
Prime Source Meso 4SC Select Herbicide
On Sale!
$48.38
Was: $53.76

Free Shipping

Info / Buy Now

Displaying 1 to 20 (of 25 questions)
Sort:
  • 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.

    Was this answer helpful to you?   Yes No
    68 of 70 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. 

    Was this answer helpful to you?   Yes No
    33 of 37 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 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.

    Was this answer helpful to you?   Yes No
    26 of 35 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.

    Was this answer helpful to you?   Yes No
    24 of 25 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.

    Was this answer helpful to you?   Yes No
    19 of 19 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). 

    Was this answer helpful to you?   Yes No
    8 of 8 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.  

    Was this answer helpful to you?   Yes No
    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.

    Was this answer helpful to you?   Yes No
    6 of 8 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.

     

    Was this answer helpful to you?   Yes No
    3 of 4 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 application with 1/4" - 1/2" of water immediately after application for best results.

    Was this answer helpful to you?   Yes No
    3 of 3 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.

    Was this answer helpful to you?   Yes No
    2 of 3 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 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.

    Was this answer helpful to you?   Yes No
    2 of 5 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.

    Was this answer helpful to you?   Yes No
    1 of 1 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.

    Was this answer helpful to you?   Yes No
    1 of 1 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.

    Was this answer helpful to you?   Yes No
    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.

    Was this answer helpful to you?   Yes No
    1 of 1 people found this answer helpful.
  • Asked by Justsomeguy from Topeka, Ks
    07/05/2020
    Q
    Will Prime Source Meso 4SC Select (Generic Tenacity Herbicide) still work if I purchased it in the fall and it is now separated?
    I used some in the fall and kept it in the garage over the winter. Temp in the garage never got below 10
    A

    It is best to store chemicals such as Prime Source Meso 4SC Select in a cool dry place away from extreme temperatures (below freezing and above 85) and direct sunlight.  If the product was exposed to below freezing temperatures and it is separating and will not mix back up, then it would be recommended to replace as it may not be as effective.

    Was this answer helpful to you?   Yes No
    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.


    Was this answer helpful to you?   Yes No
  • Asked by Loretta from Massillon, Ohio
    03/27/2021
    Q
    Does Prime Source Meso 4SC Select kill hairy bittercress?
    If not what will? Thank you
    A

    Prime Source Meso 4SC Select is not labeled to control hairy bittercress. Quincept Herbicide is a great choice for hairy bittercress control as well as a wide variety of other weeds. Be sure to check the Product Label for your grass type to make sure its one of the tolerant species for using this product over it safely. 

    Was this answer helpful to you?   Yes No
  • Asked by Sharon from Sylva, Nc
    02/23/2021
    Q
    Which soil-active herbicide should it be combined with Prime Source Meso 4SC Select (Generic Tenacity Herbicide) for pre-emergent application?
    A

    When applying as a pre-emergent you can mix Meso 4SC with a pre-emergent such as Prodiamine 65 WDG for extended control of your weeds. This would be applicable only if you are not overseeding the lawn after your application.

    Was this answer helpful to you?   Yes No
Displaying 1 to 20 (of 25 questions)