SKU: 66728470441
generic tenacity herbicide

generic tenacity herbicide Meso 4SC Select Herbicide (Tenacity) 8 Ounce

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Description

generic tenacity herbicide Meso 4SC Select Herbicide (Tenacity) 8 OunceMeso 4SC Mesotrione Herbicide Active Ingredient: Mesotrione 40% A selective, systemic herbicide that features a new mode of action for pre and post emergence grass and broadleaf weed control in several cool and warm season turf specieslike keeping bentgrass out of your rough. Meso 4SC can also be applied on established or newly seeded turf. What is the mode of action of Meso 4SC herbicide? Meso 4SC inhibits a plant enzyme called HPPD that is essential

Meso 4SC Mesotrione Herbicide 

Active Ingredient: Mesotrione - 40%

A selective, systemic herbicide that features a new mode of action for pre and post-emergence grass and broadleaf weed control in several cool- and warm-season turf species—like keeping bentgrass out of your rough. Meso 4SC can also be applied on established or newly seeded turf.

What is the mode of action of Meso 4SC herbicide? 

Meso 4SC inhibits a plant enzyme called HPPD that is essential to photosynthesis and prevents the formation of carotenoids in susceptible plant species. Without carotenoids, light energy and by-products of photosynthesis will destroy chlorophyll and cell membranes. This results in bleaching of leaves followed by necrosis and death of the plant.

How quickly does Meso 4SC work?

Once absorbed, Meso 4SC quickly translocates throughout the plant. Weed growth is suppressed soon after application, as photosynthesis is disrupted. Death of the plant usually occurs within two to three weeks.

What turf species can Meso 4SC be applied to?

Meso 4SC can be applied to many of the turf types commonly found on fairways, roughs, or for sod production, such as Kentucky bluegrass, perennial ryegrass, tall fescue, fine fescue, centipedegrass, and St. Augustinegrass (sod only). Lower use rates are recommended for perennial ryegrass, fine fescue, and St. Augustinegrass. Meso 4SC is not for use on putting greens.

Herbi-Oil is recommended to be used with this product during hot Summer months to keep Meso 4SC from evaporating before it has been absorbed by the plant sprayed.

Usage: Apply at 4-8 fl. oz. per acre in at least 30 gallons of water.
Active Ingredients: 

EPA Reg: 89442-33
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SKU: 66728470441

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4.7 ★★★★★
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Rhbones
Birmingham, US
★★★★★ 5
Works for my 2011 115hp Etec
Size: For 75-250 HP
Exact fit and cheaper than a trip to a repair shop. Make sure you have the proper gasket sealer, a good scrapper that's not going to dig into the sealing surface, and tools for the job. I went on my computer and downloaded a video that walked me through the process. I'm a mechanic by trade but wanted to ensure everything was correct. I've been running the motor now for a couple of months. Peeing just as it's supposed to. No more delivering, waiting, and retrieving my boat from the shop for its routine service. Just follow your owner's manual to make sure you do all the necessary maintenance.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 8, 2025
C
Verified Purchase
Chelsey R
Birmingham, US
★★★★★ 5
Great replacement
Size: For 5.5HP 6HP 7.5HP
Works as it should. Easy to swap out.
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Reviewed in the United States on August 12, 2025
D
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Dan
Birmingham, US
★★★★★ 5
Works
Size: For 60 65 70 75 HP
Works great
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Reviewed in the United States on May 21, 2026
B
Verified Purchase
Billy kinney
Houston, US
★★★★★ 4
Great product
Size: For 85-300 HP
Complete rebuild kit for $38 and great quality and fast delivery
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Reviewed in the United States on August 30, 2025
G
Verified Purchase
grog
Louisville, US
★★★★★ 5
If pump doesn't seem to work
Size: For 85-300 HP, Size: For 85-300 HP
Hi....I apologize it took me a while to get back to you with my results. Here is what I discovered about the pump and will also apply to some of the other comments I read in the reviews with people not getting the pump to work: 1.) I removed the pump to check the proper direction of the impeller and it was correct as can be seen in the photo. 2.) I built a pump shaft attachement so that I could operate the pump with a power drill. 3.) I attached the water muff to the unit and tried to pump water.....it wouldn't do so. What I did see however was that even at high hose discharge and small leakage at the muff I could not fill the water cavity in the housing. 4.) I installed a strap around the muff and tightened it very tight and THEN at high hose pressure I was able to get the cavity to fill with water. 5.) At that point I activated the drill and was able to get the pump to actually pump water. I then removed the pump housing and removed the O-Ring that resides on top of the impeller, reassembled and it would not pump water. Since the O-Ring sits higher than the original does I wanted to make sure that it was necessary to have it in the pump. 6.) I reassembled the engine and kept the tight strap on the bottom and finally it pumped water into the engine. My conclusion that you can reply to other buyers if they have a problem: Do NOT underestimate 2 things....1.)the lack of ability of the pump to draw water up AND 2.)the fact that if the muff leaks it will NOT fill the cavity when common sense says it should. This was a 120hp Johnson. The engine bottom must be immersed fully or the muff must be very tight on the lower unit for the pump to function. Please feel free to post this if you wish.
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Reviewed in the United States on August 12, 2024

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