PRE-EMERGENT HERBICIDE: Quali-Pro's Prodiamine 65 WDG ... Golf Courses EFFECTIVE AGAINST: Annual bluegrass (Poa annua), Henbit, Knotweed, Chickweed, Spurge, Foxtail, Goosegrass ACTIVE INGREDIENT ...

Glyphosate is a non-selective herbicide that can be used for this type of control. Annual Bluegrass Poa annua This fine-bladed, bright-green low-growing grass grows vigorously in cool, moist weather.

Take a walk around your yard, and look for young weeds. “Ideally, you want to find them before they take off,” says Waltz.