Landscape Management, Weed Watch 2014
WEEDWATCH STANDING SENTINEL TO PROTECT PLANT HEALTH LARGE CRABGRASS Digitaria sanguinalis 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 LANDSCAPEMANAGEMENT NET FEBRUARY 2011 16 PHOTOS COURTESY DR FRED YELVERTON LEFT DR SHAWN ASKEW Recommended Dow AgroSciences solution Confront specialty herbicide Recommended Dow AgroSciences solution Dimension specialty herbicide CONTROL TIPS When soil temperatures reach 55 F in the spring apply a pre emergent crabgrass herbicide Choose the formulation that works best for your operation There are several liquid granular or fertilizer granule options Consult the appropriate product label for recommended rates for your area as well as reseeding and overseeding recommendations State restrictions on the sale and use of Dimension apply IDENTIFICATION TIPS This low growing winter annual thrives in open turf and becomes upright as it matures Corn speedwell has small lower leaves that are rounded and toothed the upper leaves are pointed The plant which is entirely covered in ne hairs grows small bright blue lowers with white throats A distinctive heartshaped seedpod grows below the lowers It does not typically last long after lowering and cannot live in high temperatures CONTROL TIPS Increase turfgrass density and minimize open turf areas by fertilizing mowing and irrigating Control winter annual broadleaf weeds before seed set Treat early stages of growth with a product containing multiple broadleaf herbicides such as 24 D MCPP dicamba clopyralid or triclopyr Apply a pre emergent broadleaf herbicide such as isoxaben in late summer IDENTIFICATION TIPS This light green bunchtype grass features seedhead spikelets in two to nine nger like branches along the stalk The summer annual germinates when soil temperatures reach a consistent 55 F Its tall membranous ligule has jagged edges and no auricles Leaves are rolled in the bud and the collar is broad with long hairs It grows under close mowing and prefers open areas with thin turfgrass CORN SPEEDWELL Veronica arvensis Confront is not for sale or use in Nassau and Suffolk counties New York Other state restrictions on the sale and use of Confront apply
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