By late September the mornings in Cibecue have a bite to them, frost on the windshield and steam coming off the creek before the sun clears the ridge. Northern Arizona Weed Control works the tail of the season — mowing, trimming and edging yards, then clearing them down so nothing sits matted under the winter. This high country grows fast in the wet months and quits abruptly, which makes a well-timed cleanup worth more than a dozen ordinary cuts. A yard put to bed properly comes back in spring without a fight. That is a good thing to leave behind at the end of a day.