Best Management Practices for Maryland Golf Courses

Figure 35. Dollar spot. Photo credit: Joseph Roberts.

Weeds

Crabgrass ( Digitaria spp.), goosegrass ( Eleusine indica ), yellow foxtail ( Setaria glauca ), green kyllinga ( Kyllinga brevifolia) , yellow nutsedge ( Cyperus esculentus) and annual bluegrass ( Poa annua ) are among the most common and troublesome turf weeds in Maryland. Weeds such as these compete with desired plants for space, water, light, and nutrients and can harbor insects and diseases. They can be hosts for other pests such as plant pathogens, nematodes, and insects. Certain weeds can also cause allergic reactions in humans. Weed management is an integrated process in which good cultural practices are employed to encourage desirable turfgrass ground cover and in which herbicides are intelligently selected and judiciously used when needed. For more information on controlling weeds in Maryland, including herbicide recommendations, see: • Broadleaf Weed Control in Established Lawns . 2005. University of Maryland. • Herbicides for Crabgrass and Goosegrass Control in Turf . 2008. University of Maryland. • Guide to Controlling Weeds in Cool Season Turf . 2016. University of Maryland Extension.

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