Syngenta 46256 Tenacity 8oz Herbicide, Clear

I recently purchased Syngenta Tenacity (8 oz), and I couldn’t be more impressed with its performance. This is a truly high-quality, professional-grade selective herbicide, and it shows in every aspect. Tenacity mixes easily, applies smoothly, and works exactly as intended when used with the proper surfactant and application rates. Within just a few days, I began to see targeted weeds—like crabgrass, clover, and other broadleaf and grassy varieties—turn white as the product interrupted their photosynthesis. It provided clean, consistent, and uniform control across the treated areas without damaging my desirable turf. What really stands out is how versatile and effective it is for both pre-emergent and post-emergent applications. The coverage is excellent, the results are reliable, and it’s noticeably more powerful and precise than anything you’d get from big-box store lawn treatments. Overall, the durability of the formulation, the predictable results, and the professional-level performance exceeded my expectations—especially for the price. I’d highly recommend Tenacity to any homeowner or lawn enthusiast looking to elevate their lawn-care program and achieve cleaner, healthier turf.

Works as it should when applied correctly using the recommended application rates. Mixes easily and spray application ensures good distribution on the product.

Tenacity vs Tenacious Crabgrass. I inherited a ton of crabgrass, various sorts apparently. I hate it. I had not found anything effective and was excited to try this. It has not been the miracle cure others have claimed it to be. I’d say it’s a little less than 50% effective. It’s 100% effective at turning exposed grass stems white, but I noticed the green blades just keep growing under the white, dead blades. This is even after repeat applications as directed. It’s more effective against weaker weeds. I’ll keep using it, and I’ll buy it again, because frankly it’s cheap. Do NOT Be fooled by the small size and seemingly high cost. Even with the surfactant and dye, the total cost is roughly $1/ gal at prescribed doses. It’s 50% effective against crabgrass, but that’s 50% better than other products I’ve tried. I’ll keep throwing it on and whittle away at the weeds.

It's expensive and at first didn't appear to work. It turned my grass white and the weeds were still green. After 2 weeks the weeds were dead and after 3 weeks my grass was green again. Just have patients. It's better than pulling the weeds out with a screwdriver for sure

I love Tenacity, it works so well !