August is the beginning of late Summer and the occurrence of the "dog days of Summer". It is also prime time for weeds in our turf grasses. Purple and yellow nutsedge (also known as nut grass) is a sad sight in all grasses, and seems to reach its' peak during August. The sword shaped blades of nutsedge are attached to a small root bulb, or nut in the soil. Nutsedges are particularly difficult to pull because the nut root is so deep. New Zoysia is susceptible as well as Tifton Bermuda. How do I control nut sedge infestation, you ask? The answer is two-fold. First, for the elimination of current infestations, use Certainty. It is formulated only for the control of nut sedge. Mix according to directions and spray directly on affected areas. I have had success using this product after consulting Drs. Ponder and Gilliam at Auburn University's school of Agriculture. Second, be sure to apply a good pre-emergent in late Winter, and again in the Fall.
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