How do I control Japanese bush clover (Lespedeza striata) in turfgrass in Spotsylvania County Virginia?
Recommendation: Although Japanese bush-clover control has not been tested at Virginia Tech, it seems reasonable to expect the weed to respond similar to other annual legumes such as black medic, crimson clover, and hop clover. Products that contain the following active ingredients should control this weed: triclopyr, clopyralid, 2,4-D, dicamba, and MCPP. Two- or three-way mixtures of these active ingredients are recommended. These plants should die during winter and new seed will germinate in spring or early summer. Where bare spots remain in the lawn, a preemergent crabgrass herbicide (pendimethalin, prodiamine, dithiopyr) should be used in spring to prevent new weeds (such as crabgrass) from emerging in the bare areas.
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