If you let them, weeds can take over along lawn edges, in patio spaces and in hard-to-mow areas. So, don't let them. Control undesirable broadleaf weeds and grasses instead with Roundup® Ready-to-Use with Wand Applicator. Just connect and extend the battery-powered wand, then hold the trigger. Sprays continuously so hands don't get fatigued. Once applied, this fast-acting formula works its way through the plant, from leaf to stem to root. That means it controls the entire plant killing to the roots! Rainproof in 2 hours. Visible results in 1-2 days, with complete control in 7-10 days.