Smooth Crabgrass

Digitaria ischaemum

Smooth crabgrass germinates after soil temperatures reach between 53-58 degrees Farenheight (at the 4-in depth) for three consecutive days. Leaves are smooth on both surfaces, but may have a few sparse hairs at the collar. Smooth crabgrass has a membranous ligule and can have purple coloring near the base. The seedhead consists of 2-6 spike branches at the top of stems.

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Whole Plant	Leaf
Stem	Other

Chemicals exhibiting activity against this weed

Always refer to the product label for specific information on proper product use, tank-mix compatibility, and turfgrass tolerance. Products containing more than one of the chemicals listed below may offer improved control. Read Full Disclaimer

Season	Emergence	Chemical
Cool	Pre	Benefin, bensulide, dithiopyr, mesotrione, oryzalin, oxadiazon, pendimethalin, prodiamine
Cool	Post	Dithiopyr, mesotrione, MSMA, fenoxaprop, fluazifop, quinclorac
Warm	Pre	Benefin, bensulide, dithiopyr, flazasulfuron, mesotrione, oryzalin, oxadiazon, pendimethalin, prodiamine
Warm	Post	Dithiopyr, fenoxaprop, flazasulfuron, fluazifop, mesotrione, metribuzin, MSMA, metribuzin + MSMA, quinclorac, sethoxydim, trifloxysulfuron