Ratings & Reviews for Roundup Extended Control 32-oz Concentrated Weed and Grass Killer

It’s not the same formula

The product works but for some reason, it takes much longer to show it’s worth. Use to see where you sprayed in 2-3 days, now it’s weeks before you see progress.

Weed killer

Easy directions, kills weeds as stated, easy to mix in a sprayer

Slime in tank

I was spraying weeds and noticed the amount of spray coming from the nozzle was very restricted so I tried pumping the sprayer and found that it had plenty of pressure. I took the wand apart and found the filter was clogged by some white slimy stuff. So I opened the tank and found the slimy stuff was in the tank. Don't know what causes it.

Definitely does NOT provide extended control.

I have a ridiculous amount of weeds again only one month after applying RoundUp Extended Control. Total waste of money. I tried uploading pictures, but the website keeps telling me that my files are too large even though they are the smallest size my phone's camera settings allow. Guess RoundUp wants to make sure no one else sees them. And yes, I followed the mixing and application instructions on the label and even used a RoundUp brand 3 gallon tank sprayer to apply it.

Poor Performance

I decided to purchase this weed killer and had poor results. There was no visible change in the weeds after 24 hours. Very disappointed for the price.

Works but.....

Bought this to test late spring on the side of my drive way. Short story is that it did work but you really have to 'paint' the whole ground you want covered - Regardless if there is weeds growing. Therefor it does not really cover a wide area. You still may get 10% of the weeds back because you 'missed' a spot. Not sure this is cost effective. Only is if you have a particular spot you want covered. I will use this in places I only want to treat once and know I cover the whole area. It do...

Awesome product!

[This review was collected as part of a promotion.] I have a wooded lot and it meets up to a fence which is also wooded so I used this to kill off the indestructible weeds along my flower beds - it was great as it killed them within a week and only needed to re treat a few small areas a second time.

Works Very Well

Within an hour, weeds were wilting. Twenty-four hours later they were brown, withered and dead. Very easy to pull up and no sign of re-growth so far. I have used this product before so I do not expect to see re-growth before the fall.