Those dandelions, clover, and other broadleaf weeds that were a problem all summer should be controlled this fall. The period from late September through October is the ideal time to control broadleaf weeds in turfgrass because broadleaf weeds are most susceptible to herbicides at this time. The turf and weeds must be green and actively growing for this to be most effective. Apply on a sunny day with moderate temperatures, no wind, ample soil moisture and no rain in the 24-hour forecast. There are now many different active ingredients available for broadleaf weed control. Be sure to select a product that has at least two if not three or more active ingredients to maximize efficacy and spectrum of weeds controlled. Active ingredients can and should include a combination of 2,4-D, MCPP, MCPA, dicamba, triclopyr, fluroxypyr, and/or carfentrazone. Clopyralid is also a good broadleaf herbicide, but it is no longer labeled for lawns, just golf courses, athletics fields, and other commercial properties. Many of the weed and feed products available should be applied in mid- to late-September to receive the full benefit of the fertilizer as well as the most efficacious weed control. Read and follow all directions on the herbicide label when using the product. Be careful when using these herbicides because they may damage desired vegetation such as flowers, trees, shrubs, or vegetables.