September is a good month to visit California, particularly if you leave the busy freeways and take to the backroads of the rural towns and villages. The countryside roads around places such as Modesto, Turlock and Merced in California’s Central Valley are alive with activity as farmers begin the massive undertaking that is the annual harvest.Combines are moving through maize fields to bring in this year’s maize silage crop, while alfalfa can also be seen baled in fields.