Lawn Weed Control Kill weeds in lawns, gardens and on hard surfaces. Breadcrumb Home Products Lawn Weed Control Garden ProtectionInsect and Pest ControlLawn Weed Control Showing all products (Change) Ortho® Killex® Lawn Weed Control ConcentrateMore infoConcentrated formula provides maximum coverage for more widespread weed infestations. Ortho® Killex® Lawn Weed Control - Ready-To-UseMore infoReady-to-Use sprayer is an easy and convenient way to treat weeds. 5L format is great for large lawns. Ortho® Killex® Lawn Weed Control - Ready-to-SprayMore infoReady-to-Spray attaches directly to hose for easy treatment of more widespread weed infestations.