I think I have crabgrass, but the technician told me it is quackgrass. How can I tell the difference?
Quackgrass: Quackgrass is a perennial and is considered to be a cool season grass. When left unmowed, it has cord-like stalks that can reach 3 feet tall. Most of the time you’ll see quackgrass in round patches due to its radial growth of the underground rhizomes. The leaves are wide, shiny, and dark green in color. It starts growth in early spring and continues until late fall. Unfortunately, there is no legal chemical that will selectively take quack out of your lawn. Killing it requires a dose of Round-up or similar product which will, yes, also kill anything that is green and/or desirable around it. Crabgrass: Crabgrass is an annual that begins to make its appearance VISUALLY in July/August. The crabgrass plant is generally a low-growing cluster with thick blades which are reddish-green in color. Crabgrass germinates when the average soil temperature reaches about 50-60 degrees F at a depth of 2-3 inches. It thrives in hot, dry conditions where there is little or no competition from