How much round-up is needed in 20 gallons of water?

Asked June 8, 2014, 4:50 PM EDT

How much round-up is needed in 20 gallons of water to kill grass and weeds?

Eau Claire County Wisconsin

1 Response

You really have to read the container label. The Round-up super concentrate label says 2.5 ounces per gallon of water so for 20 gallons, you would need 50 ounces or 6.25 cups.