Landscape Management, Weed Watch 2014
WEEDWATCH STANDING SENTINEL TO PROTECT PLANT HEALTH For more information regarding these and other turf weeds and related control technologies and tips please visit www DowProvesIt com or call 800 255 3726 BROUGHT TO YOU BY PHOTOS John W Everest Auburn University Bugwood org Left Steve Dewey Utah State University Bugwood org Recommended Dow AgroSciences solution Dimension specialty herbicide Recommended Dow AgroSciences solution Snapshot specialty herbicide Control tips For landscape or container grown ornamentals apply a labeled product containing both isoxaben and trifluralin Apply labeled preemergent products in early spring and again two to three months later for season long control Hand weed any plants that may have emerged prior to application Stinkgrass is not a common problem in well established turfgrass Stinkgras Eragrostis cilianensis Identification tips This erect bunch type perennial grass commonly is found in warmseason turf and often is identified by a black fungus growing on the seedheads Its collar is divided into two parts by the midvein and its sheath is smooth and round The seedhead is a narrow spikelike panicle Smutgrass spreads by small seeds dispersed in wind and rain and by the transfer of equipment and grass clippings Control tips A preemergent herbicide containing dithiopyr will control smutgrass prior to germination of seedlings Because this weed can be tough to eradicate consider making two to three sequential applications of dithiopyr with the first application in spring and subsequent applications occurring six to eight weeks after the last application Conduct cultural control practices including proper mowing fertilization and watering Identification tips This grassy summer annual is best identified by its distinctive odor and grayish green panicle Seedlings develop into tufted plants relatively quickly Leaves are rolled in the bud The lower surfaces are smooth and glossy while the top of the leaf is rough with hairs along the margins Auricles are absent and the ligule is a fringe of hairs Sheaths are round and slightly flattened Smutgras Sporobolus indicus Trademark of The Dow Chemical Company Dow or an affiliated company of Dow State restrictions on the sale and use of Dimension specialty herbicide products and Snapshot apply Consult the label before purchase or use for full details Always read and follow label directions 55 May 2014 LANDSCAPEMANAGEMENT NET
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