The nutsedge and spurge populations during August and September have been the worst I have seen in 16 years! Warm soils combined with unusually wet soil conditions = weed takeover.  Spurge, which appears in bare areas, especially along the curbs and driveway edges, is difficult to control and even when killed can germinate another plant in its place which grows very quickly.  The problem we have now is that the fall seeding window is open, so herbicides applied now, delay the ability to plant grass seed.  It is best at this point to let the frost take out these pesky summer weeds, so fall seeding is not delayed. We are do to get one night this weed in the upper forties, so that will begin the natural decline of these weeds.