Turfgrass iPhoneApplication RSS Feedhttp://www.turffiles.ncsu.edu/Easy turfgrass guide for home lawn owners.50Unwanted Grasses!<b>Title</b>:Unwanted Grasses!<p><table class ="image"><caption align="bottom">Click Images to Enlarge</caption><tr><td><a href="http://www.turfgrass.ncsu.edu/Images/turf_management/annualryegrassproblem1.png"><img src="http://www.turfgrass.ncsu.edu/Images/turf_management/Thumbs300/annualryegrassproblem1.png" alt="Click to Enlarge" Style="padding-left:20px; padding-bottom:20px;"hspace="10" border="0"/></a></td></tr></table><BR CLEAR=LEFT> <p><html> <head> <title></title> </head> <body> <p> <span style="font-size: 16px;"><span style="font-family: tahoma,geneva,sans-serif;">You may be seeing unsightly plants in your tall fescue lawn similar to what is in the photo.</span><span style="font-family: tahoma,geneva,sans-serif;"> This is probably annual ryegrass or orchardgrass. Both can come with seed put out in the fall or with straw if the lawn was mulched. Annual ryegrass is a common weed in wheat production.</span></span></p> <p> <span style="font-size: 16px;"><span style="font-family: tahoma,geneva,sans-serif;">There is no selective control for either of these problem grasses.</span></span></p> <p> <span style="font-size: 16px;"><span style="font-family: tahoma,geneva,sans-serif;">Annual ryegrass will most likely die out as temperatures get hot. Orchardgrass will weaken but possibly not go completely away.</span></span></p> <p> <span style="font-size: 16px;"><span style="font-family: tahoma,geneva,sans-serif;">You can control either with glyphosate (Roundup) applied directly to the plant, but some of the surrounding turf may also be killed. To keep these from spreading, make certain you mow often enough to keep them from forming seedheads and setting seed which may germinate this fall.</span></span></p> <p> <span style="font-size: 16px;"><span style="font-family: tahoma,geneva,sans-serif;">Drs. Charles Peacock, Fred Yelverton and Travis Gannon</span></span></p> <p> <span style="font-size: 16px;"><span style="font-family: tahoma,geneva,sans-serif;">Turf and Weed Management Specialists, Dept. of Crop Science, NC State Univ.</span></span></p> <p> &nbsp;</p> <p> &nbsp;</p> <p> &nbsp;</p> <p> &nbsp;</p> </body> </html> <p></p><p></p><p></p><table><tr><br><td><a href="http://www.turfgrass.ncsu.edu/Images/turf_management/annualryegrassproblem2.png"><img height='150' src="http://www.turfgrass.ncsu.edu/Images/turf_management/Thumbs175/annualryegrassproblem2.png" alt="photo" Style="padding-left:20px; padding-bottom:20px;" border="0" /></a></td></p></tr></table><br /><hr /> <br clear="all"/>Pest Problemshttp://www.turfgrass.ncsu.edu/Images/turf_management/Thumbs300/annualryegrassproblem1.png3Annual ryegrass and orchardgrass problems.http://www.lawncare.ncsu.edu//Preview.aspx?PostID=72http://www.lawncare.ncsu.edu//Preview.aspx?PostID=72