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The leaves of bermudagrass are much finer and are darker in color. Crabgrass seed heads are finger-like spikes that resemble common bermudagrass seed heads. However, crabgrass seed heads are somewhat thicker.
Crabgrass was originally introduced into this country as a possible forage crop. However, it easily escaped cultivation and is now widespread throughout the country. It is one of the most common and problematic weedy grasses in home lawns. It is also found on golf courses, parks, flower and vegetable gardens, athletic fields and any other place that seeds are able to germinate.
Cultural Practices that Help Prevent Grassy Weeds
The roots are shallow and fibrous and do not reach the depth of many other grasses. Large (hairy) crabgrass will root at the nodes and can produce long stolons. Smooth crabgrass does not root at the nodes.
For lawns containing 50% or more weeds with thin or very little grass, a non-selective herbicide can be used if you plan on seeding or sodding soon after. Don’t wait too long to renovate or the weeds will become established and you will have to do it again. Each grass type has a preferred time of year when it should be planted.
If you have had problems before with foxtails, the best way to stop their development is with a preemergent herbicide. These preemergents are added to spring fertilzers.
For best results, treat new weeds as they emerge from soil, when they’re young, actively growing and still less than 3 inches tall. This stops these lawn pests before they can establish, set seed and spread on their own. Used as directed, IMAGE All-In-One Weed Killer is guaranteed not to harm your lawn.*
Controlling these persistent lawn weeds and others requires killing these invaders, roots and all. IMAGE All-In-One Lawn Weed Killer starts working on contact to kill tough weeds in established lawns all summer long. The ready-to-spray container attaches to a regular garden hose, automatically measuring and mixing as you spray. It delivers visible results in three to seven days and kills weeds completely within two to three weeks.
To help your lawn grass stay at its competitive peak, follow these “good practices” as well:
1. UMass Extension Turf Program, “Biology and Management of Crabgrass,” University of Massachusetts Amherst, May 2011.