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

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 2 years, 8 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 2 years, 8 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 2 years, 8 months ago
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dawn65
Yakima, WA, USA
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Question

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

asked 3 years 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 3 years 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 2 years, 8 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 3 years 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 3 years ago
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ScottsCustomerCare
Marysville, OH, USA
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Question

when can my cattle graze after applying?

asked 2 years, 7 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 2 years, 7 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 2 years, 5 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 2 years, 5 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 2 years, 4 months ago
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Clyde
Louisiana
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As long as the product is undiluted and in the original container, the shelf life is 8 years.
answered 2 years, 4 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 2 years, 1 month 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 2 years, 1 month ago
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ScottsCustomerCare
Marysville, OH, USA
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