Roundup for Lawns Crabgrass Destroyer2 kills crabgrass and grassy weeds to the root This weed killer for lawns is formulated to kill even the toughest crabgrass and grassy weeds Apply this product to Kentucky bluegrass, fine fescue, perennial ryegrass and tall fescue 

Apply this product to actively growing weeds (during the early growth stages for the best results), when daytime temperatures are between 45°F and 90°F 

This 64 oz. container of Roundup for Lawns Crabgrass Destroyer2 is ready-to-use with a trigger sprayer