Roundup Weed & Grass Killer (510011001) Reviews
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Roundup Weed & Grass Killer (510011001)

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$14.95
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Roundup - the best weed killer and environmentally sound?

May 14, 2005 (Updated May 9, 2008)
Review by  
Rated a Very Helpful Review

Pros:Works great, most potent concentration of glyphosate, Waterproof after only 30 minutes.

Cons: Initial price is a little steep, Mixing takes time, not very forgiving.

The Bottom Line: A great weed killer, just beware that not diluting properly can be fatal to nearby desirable plants.


I have used just about every major brand of herbicide on the market to kill weeds. Some of these herbicides have worked great, i.e. Weed-B-Gon concentrate and some not so great i.e. those ready-to-use formulas. I purchased this product to rid my lawn of unwanted vegetation that was too stubborn for manual removal. In the past, I have used Roundup's original concentrated formula with excellent results, so I was hoping that the super concentrated formula could add some much needed ammo to my weed killing arsenal.

The Product :

Roundup Super Concentrate is one of the most potent herbicides available without having a license. Roundup Super Concentrate Weed & Grass killer is designed to kill most types of weeds, grasses, and even stumps. Roundup Super Concentrate comes in either a 1 quart bottle or a 1 gallon jug. I purchased the 1 gallon jug that, according to Roundup, can make up to 85 gallons of solution and treat over 25,500 square feet of land.

Since the product is a concentrated formula, you will need to dilute this product (around 3 ounces of product per gallon of water). Also, you will need a quality sprayer to distribute this product, that is if you don't want to kill everything within 1 square foot of your targeted weed. Note: Roundup suggests that this product can be used for lawn replacement, though I question the environmental impact when using such a large amount of this product so close to top soil.

Like the ready-to-use spray version of Roundup, the concentrated formula is rain proof after a mere 30 minutes after application. Roundup can be used on almost any type of small weed or plant i.e. poisons oak, all types of grass, and clover. As with all herbicides, you should probably shield nearby flowers when distributing this product, and to be safe, keep children and pets away from treated areas for a good 24 hours after use. Although Roundup claims that you can re-plant all types of vegetation within 3 days of use, I usually wait to replant a few weeks post application (to play it safe). I have never had any problems with desired vegetation growing back after using this product.

My Experience :

Roundup Super Concentrate has been a very helpful tool in my war against all different kinds of weeds in my yard; from large weeds, i.e. berry vines to those annoying weeds that creep up in the cracks in my driveway. Although the super concentrate is not as convenient as the ready-to-use formula, this undiluted formula seems to work much better in the long run. The concentrated formula not only kills weeds faster than Roundup's ready-to-use spray, but also does a better job at keeping weeds at bay. All of the areas of light brush and weeds that I sprayed last summer have yet to make a return.

Roundup is one of the fastest acting herbicides I have used that are available in stores. The time needed for small weeds to completely collapse is usually around two days when I use the recommended 2.5-3.0 ounces per 1 gallon of water; this is about 5 days quicker than the results I get when using Weed-B-Gon's concentrated formula. If two days is too long for you to wait, you can always make your solution more concentrated, however the chances of damage to surrounding vegetation is increased as is the time needed for plant replacement; not to mention it's against the law to concentrate an herbicide beyond the bottles' recommendations in most, if not all of the United States.

Roundup Super Concentrate has many positives; however it's far from being perfect. For example, no matter how diluted I make the solution I will end up getting burn spots on my lawn when spot treating dandelions, patches of crabgrass, etc. Since I mostly use this product on broad leaf weeds, in my flower garden, and in my driveway, brown spotting isn't a major concern, however if you do plan on using for spot treating in lush grass, I highly suggest diluting this product as much as possible and only spray when the wind is totally calm to prevent solution from spreading to desirable plants.


Price/Availability :

Unlike some of the diluted versions of Roundup, the super concentrated formula is not exactly widely available. I have only been able to find this product at hardware stores i.e. ACE and online sores. I purchased the 1 gallon jug on sale for $70.00; however this product usually runs for about $100.00 for the 1 gallon jug and about $50.00 for the quart. Obviously it's much cheaper to buy by the gallon if you are planning a big job.

Final Thoughts :

Although the super concentrated version of Roundup may require a little more elbow grease than the ready to use spray, it works faster and is better at killing those stubborn weeds, which makes it the better buy in the long run. I recommend this product for those with unwanted mildly woody and non woody brush i.e. licorice, poison ivy, oak, etc. If you are looking for a product to just to kill small plants in your yard, there are much cheaper products out there that are a little more forgiving when it comes to nearby vegetation, not to mention are less expensive. Other than for that, this product is recommended 100%


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