In July the old streets of Geneseo hold their shade late into the evening, and that last hour of light is the best hour to be running a mower. Dereu Services Inc keeps lawns on a steady cut here — weekly mowing, trimming around posts and fences, edging the walks, and clearing the clippings so a yard reads as finished rather than merely cut. A lawn tells the truth about the week it has had: the stripes, the line where turf meets concrete, the corners nobody reaches without stepping off the machine. Green River country grows grass fast after a rain, and staying ahead of it has a rhythm all its own. Come autumn the same route turns to leaf work, and the yards go into winter clean.