As fall grape harvest continues in the Lodi-Woodbridge winegrape region, some growers are reaping the rewards of an alternative approach to farming.More than 30 growers farming 2,000 acres have enrolled in the 18-month-old Biologically Integrated Farming Systems project, aimed at minimizing use of chemical pesticides by encouraging a host of environmentally sound farming practices. The project is administered by the UC Davis-based statewide UC Sustainable Agriculture Research and Education Program."We're farming in a different way than we were taught in school," says Randy Lange, who with his brother Brad runs the Lange Twins operation in San Joaquin County. They share with other growers their experiences maintaining beneficial insect habitats in their Cabernet Sauvignon vineyard, as well as using cover crops to balance vine vigor, reduce dust and provide easy vineyard access.The Langes hope their farm will provide living proof to the 600-grower winegrape district that farming can be done successfully without relying as heavily on traditional chemical pesticides, many of which soon will not be available under stricter environmental regulations.The project is co-funded by the U.S. Environmental Protection Agency and the California Environmental Protection Agency's Department of Pesticide Regulation.