Hi-Yield (33693) Super Concentrate Killzall Weed & Grass Killer (1 gal)

The area that is green are areas I didnt spray! I’ve tried several weed killers over the years, and Hi-Yield Super Concentrate Killzall has become my go-to product. The concentrate is extremely cost-effective because a small amount treats a large area, and the results have been consistently reliable. One thing that impressed me most is how well it works on crabgrass, which can be difficult to eliminate. After mixing according to the directions and applying with a pump sprayer, the crabgrass started yellowing within a few days and was mostly dead within about a week. Heavier patches sometimes needed a second spot treatment, but the product still cleared them effectively. I’ve also used it along driveway cracks, fence lines, and areas with mixed grasses and weeds, and it kills vegetation down to the root, helping prevent regrowth. For best results, I recommend spraying on a dry, calm day and making sure the leaves are fully coated. Helpful tips: - Works very well on crabgrass and other grassy weeds when applied to actively growing plants. - A second application can help with thick or mature patches. - Because it’s a non-selective killer, be careful around plants you want to keep. Overall, this is an excellent value, very effective even on stubborn crabgrass, and dependable for large or small treatment areas. I highly recommend it for anyone needing a strong, economical weed and grass killer.

Very satisfied with the spray effectiveness. It took about 5 days to see good results. The sprayed area kept looking more brown indicating that it keeps on working. I sprayed this with a garden sprayer and my helper used an electric spray wand. I mixed it as 3 Tbl spoons per gallon to ensure it was non-selective. It was very easy to mix as hi-yield includes surfactant pre-mixed. I started with water and then added the herbicide. It was fast spraying. I had also tried concentrated vinegar at first, but realized I needed something that also got to roots and nodules. The kill speed using herbicide is as expected. It has been several. I recommend wearing gloves when handling this concentrate as well as during spraying. This is quality herbicide concentrate. It has been weeks after the spray and there is no fresh growth in the sprayed areas. I still have plenty herbicide concentrate for the next season. This was a good purchase.

No more fighting weeds. Just kill them onnthe first spray! It does take time!!! Once took 2 weeks to see the plants dying but it always works! It kills the whole plant not just what we see above the ground. Works much faster in hot weather.

Works really good.

Good product

Great weed killer. Mix with water, spray and they die. It does the job

This stuff works great did the job

My husband used it on the weeds. I think its okay.