Quinclorac is an
herbicide used primarily to control
crabgrass. It is found in some household herbicides for lawn use. Most lawn maintenance companies use the product for the control of annual grass weeds like crabgrass. Quinclorac is a synthetic
auxin. Heap considers it to also have a
cellulose herbicide action, although some studies show quinclorac to have no cellulose action. ==Regulation and registration==