Instead of using Round-Up try this. Safer for the environment.

1 gallon white vinegar 

2 cups Epsom Salt

1/4 cup Dawn Dish Soap-blue original

Combine in a sprayer container and apply to weeds or grass you want to get rid of. Spray in the morning after the dew has evaporated. Natural News claims weeds will be gone by end of day-maybe a little longer!

This concoction costs about $5.00!