Stinkgrass can grow in a variety of soil types from moist to dry. They grow rapidly into adults after germination. Seedlings of stinkgrass are difficult to distinguish from other grasses.
Leaf blades can be either flat or folded and are light-green colored. The undersides of the leaves are smooth and glossy, while the top is rough and hairy on the margins. At the leaf collar is a dense fringe of straight hairs. Stems usually branch at the base.
Stinkgrass blooms from mid-summer to early autumn, lasting up to 2 weeks per plant. The seedhead grows in a triangular shape with a grayish-green color, which helps distinguish stinkgrass from other grasses. Seeds grow in spikelets that are loosley arranged in the seedhead. Upon maturity, seedheads become more brownish in color.
Stinkgrass will not survive if mowed repeatedly. In the presence of more competetive crops, the weed will not prosper well either.
Most preemergence and postemergence herbicides will effectively control stinkgrass. Imazethapyr will not provide control for stinkgrass. Please contact your local weed specialist to learn what is most effective in your area and how to use it best. Always read and follow all label instructions.