Looking for Answers about Roundup Roundup® Weed & Grass Killer Concentrate Plus?

Customer questions and answers for
Roundup Roundup® Weed & Grass Killer Concentrate Plus

Kills the toughest weeds and grasses. Absorbs through the leaf and stem only so killing power won't spread to non-target plants through soil. Concentrate dilutes to cover big jobs.
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9 Answers
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Customer questions and answers for Roundup Roundup® Weed & Grass Killer Concentrate Plus

Question

What is the lowest temp, in °F, at which Roundup can be applied and still be effective.

asked 1 year, 3 months ago
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Anonymous
Seattle, WA, USA
on Roundup® Weed & Grass Killer Concentrate Plus
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answer 1
Results can be achieved when daytime temperatures are above 50 degrees F. If the night time temperatures are cooler than 40-50 F the visible results will be slower. For best results we suggest applying when temperatures are consistently between 60 and 85 degrees F.
answered 1 year, 3 months ago
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ScottsCustomerCare
Marysville, OH, USA
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answer 2
I believe that the instructions state above 60. I have found that, the warmer the better.
answered 10 months ago
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dawn65
Yakima, WA, USA
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Question

low temp spraying

sprayed garden at around 55 degrees day time temp,after two weeks 75% of growth died mostly dandelions and large grass clumps are left. Daytime temp is only in 60's now, can I respray or do I have to wait for warmer temperatures? First time trying this in the garden I hate pulling weeds> Thank you
asked 10 months ago
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PSch
Maine, USA
on Roundup® Weed & Grass Killer Concentrate Plus
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answer 1
You can get some results as long as daytime temperatures are above 50. However, for improved results, we suggest applying when temperatures are regularly between 60 and 85 degrees.
answered 10 months ago
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ScottsCustomerCare
Marysville, OH, USA
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answer 2
The cooler the temps the long it will take to kill the weeds completely. I never spray until the daytime temp stays consistency above 75 and nighttime stays above 50. The warm days/nights just seem to make it work better.
answered 10 months ago
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dawn65
Yakima, WA, USA
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Question

When can I plant?

How long after killing off the weeds and the grass can I sod or till and replant grass seeds??
asked 1 year, 3 months ago
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sunshine
Sacramento, CA, USA
on Roundup® Weed & Grass Killer Concentrate Plus
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answer 1
We recommend waiting seven days. That lets the weed killer get deep into the roots before you till.
answered 1 year, 3 months ago
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ScottsCustomerCare
Marysville, OH, USA
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1out of 1found this answer helpful.
Question

when can my cattle graze after applying?

asked 9 months ago
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cattlewatcher
Jacksonville, FL, USA
on Roundup® Weed & Grass Killer Concentrate Plus
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answer 1
Your cattle can be allowed back into area where weeds have been treated once the product has dried.
answered 9 months ago
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ScottsCustomerCare
Marysville, OH, USA
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Question

DILUTION OF ROUND UP WEED AND GRASS KILLER CONSENTRATE PLUS

IF I ADD MORE ROUND UP CONCENTRATE PLUS TO THE WATER THAN THE DIRECTION CALL FOR WILL IT MAKE THE SOLUTION WORK BETTER?

EXAMPLE 3OZ OF ROUND UP TO 1 GALLON OF WATER IS WHAT DIRECTIONS CALL FOR.
***WILL THE SOLUTION WORK BETTER IF IT WAS MIXED AT:
4 OZ OF ROUND UP TO 1 GALLON OF WATER?
asked 7 months ago
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PGALL
on Roundup® Weed & Grass Killer Concentrate Plus
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answer 1
Roundup will not be more effective by increasing the dilution rate. We recommend that you use the dilution rate on the label.
answered 7 months ago
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ScottsCustomerCare
Marysville, OH, USA
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Question

shelf life

Whats to average shelf life of round up concentrate, after the container has been opened.
asked 7 months ago
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Clyde
Louisiana
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answer 1
As long as the product is undiluted and in the original container, the shelf life is 8 years.
answered 7 months ago
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ScottsCustomerCare
Marysville, OH, USA
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Question

Does Roundup work on wild onions?

If so, can I use in early spring? The onions are growing now (January) even thought the temps are still below 50.
asked 3 months, 2 weeks ago
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JohnInNC
Durham, NC, USA
on Roundup® Weed & Grass Killer Concentrate Plus
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answer 1
Roundup Weed & Grass Killer Concentrate Plus will control wild onions. For best results daytime high temperatures need to be consistently above 60 degrees.
answered 3 months, 2 weeks ago
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ScottsCustomerCare
Marysville, OH, USA
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