Roundup® Poison Ivy Plus Tough Brush Killer

This product is a weed killer that targets over 200 types of weeds, including poison ivy and oak, and provides fast-acting results within 24 hours.

• The description claims that it kills weeds to the root so they don't come back.
• The description claims that visible results are seen in 24 hours.
• The description claims that it is rainproof within 30 minutes of application.