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.

You'll need something else to control poa annua in your lawn ... make sure you don't have annual bluegrass or any other resistant weed. With proper mixing, application, and weed identification ...

“Weeds will get bigger and more difficult to control by late winter ... One final note: In some lawns, annual bluegrass can become resistant to herbicides when the same herbicide has been ...