Rated 3.4 out of 5 by 235
Rated 4.0 out of 5.0 by BugDoctor It works if you use it correctly. The concentration in the bottle is irrelevant.
Hey follks, this is a concentrate and meant to be diluted. Therefore it is irrelevant that the concentration in the bottle is different than Roundup. Mixed as directed, the resulting concentration of glyphosate will be within an effective range for most vegetation.
I've used this stuff for years. This product contains ONLY glyphosate, and is therefore slow-acting. When comparing to other products that seem to work more quickly, check their labels to see if they also contain imazapic or some other faster acting herbicide. If you want weeds to immediately burst into flames, glyphosate alone won't do it. However, this product is by far the least expensive way to kill weeds if you are patient and don't mind mixing. And glyphosate, despite the hype, is rather safe stuff to use around the house.
It's hard to tell whether the product contains a surfactant to help it spread on foliage. It doesn't hurt to add a bit of dish detergent to help in this regard.
Mix it according to the label, spray it when weeds are actively growing and at least an hour before possible rain, and give it 1-2 weeks. A few hard-to-kill weed species may survive. Hit them one more time. Don't expect that there will be no new weeds popping up later. This is strictly a post-emergent herbicide. You could apply a pre-emergent herbicide, but this can be expensive and any seeds you plant will not grow.
May 19, 2015
Rated 5.0 out of 5.0 by Vudley Very Effective Weed Killer
This is a very effective and economical weed (and any other type of flora) killer. I used it to kill off about 200 sqft of sprawling ivy ground cover, and wanted to make sure the roots were dead before uprooting the vines. This product worked great, but required about 3 applications, using about 1.5 times the concentration than recommended on the label. Just be careful of overspray and preparing the spray canister -- I wound up with a few brown spots on the lawn. Not recommended for spot sraying individual weeds (like dandelion) growing in the midst of flora you want to keep around (like a lawn).
July 23, 2015
Rated 5.0 out of 5.0 by Garyn Best weed control ever
With reviews going from 1 to 5 you HAVE to believe someone is downright wrong. It does NOT work in a "few days" or a week, more like two+ But when it does, it is very excellent.
After using HDX for around two years I have to say... I have a substantial rare tropical fruit collection that I wouldn't trust to any other weed control product near my plants.
Read the directions, be patient, and ignore the 1 reviews.
May 30, 2015
Rated 5.0 out of 5.0 by Daniel Works!
This stuff is comparatively cheap and works as well as I could have hoped it would. There aren't immediate or next day results, but as you can see in my picture, after five days, the plants it touches are nice and dead. And dead is what I was looking for. Buy it.
June 20, 2015
Rated 4.0 out of 5.0 by JasonInTheBurbs Works just fine, ignore the naysayers
Don't believe the naysayers -- this vegetation killer WORKS JUST FINE. As others have reported, it won't yield instant results, and some weeds will appear to be unaffected after a week or more. However, all of a sudden they'll droop and turn brown.
I did not have immediate success with HDX weed and grass killer.. However, I increased the mix to about 125% of what the bottle recommends, and that seemed to help. Also, and THIS IS IMPORTANT -- your sprayer needs to be putting out the correct size drops of spray. If your spray is too fine, the atomized droplets are going to blow everywhere and not land on whatever you're trying to kill. If your droplets are too large and heavy, they're going to bounce or roll off the plants and land on the ground where they won't do any good. One thing that helps is to test your spray pattern on the driveway or sidewalk before you start spraying plants so you can see what the spray pattern looks like and adjust as needed.
Some tank sprayers come with multiple nozzles and/or adjustable spray tips -- be sure you're using the correct nozzle and that it's putting out a medium-size drop. Also be sure that you're keeping the sprayer at a relatively uniform pressure -- pump regularly as you're spraying, and remember that you'll need to pump the handle more times to maintain a consistent spray as the tank has less liquid in it and more air. It's easier to tell what the "right" spray looks like after you've had some practice.
Finally, for those doing cost comparisons, the 32oz bottle of HDX grass and weed killer costs a few dollars less than the 32oz bottle of RoundUp, but the truly important metric is that the Roundup covers 3000 square feet while the HDX will cover over 6000. The bottom line is that the HDX costs less than half of Roundup. The math: Roundup is 0.63 cents per square foot, HDX is 0.26 cents per square foot.
When you're done, don't forget to fill your sprayer with clean water, pump it up, and flush the water through the hose and wand. That way, you won't be left with any residue in the tank that you wouldn't want to accidentally spray later on anything else, and your tank parts won't corrode or get sticky, etc. from having leftover chemical sitting on them.
July 17, 2015
Rated 4.0 out of 5.0 by jailcop Works Well But Be Careful
Works well but tends to spread beyond the area sprayed. Sprayed about a 1 inch area along my landscaping ties and it killed everything 4 inches away. I've used more well known week killers and they didn't do this. Not sure why.
October 6, 2015
Rated 4.0 out of 5.0 by Bill Good product and good value
The product worked very well. I recommend it and that you read the label instruction carefully. This product may take one to two weeks for the effects to become visible.
June 9, 2015
Rated 4.0 out of 5.0 by Plantman Worked stisfactory for the price!
I mixed two gallons in a tank sprayer. Used almost full concentration. I sprayed mostly perennials that were abouot six inches tall. It took about ten days to see full results.
September 22, 2015