Grape growers are invited to the Sonoma County Grape Growers Association's third Integrated Pest Management Field Day to be held at Shone Farm, 6225 Eastside Road in Forestville on Wednesday, Aug. 7, from 2:30 p.m. to 5:00 p.m. Registration for continuing education units (CEU hours) opens at 2:30 p.m.

The field day will include a recap of the IPM demonstration project that was funded in part by the U.S. EPA, Region 9. Vineyard managers involved in the IPM project and Laura Breyer, PCA, will review the 2002 season and compare it with the 2000 and 2001 experiences.

An overview of biological controls of insects, gophers and other vineyard rodents will be presented. Patricia Winters, an expert on bats, will discuss the value of bats for insect control. John Schuster, conservationist and builder of bio-diversity products, will present information on how owls are used for rodent control. Paul Michalczyk will share information on gopher trapping devices and strategies.

A demonstration of the Sonoma County IPM database summarizing the summer's results from each vineyard will be presented. IPM field books, posters, Web sites and other resources will be displayed. UC Cooperative Extension specialists will be available to answer questions.

To register, of for more information about the IPM field day, call SCGGA at (707) 206-0603 or e-mail ipm@scgga.org. PCA/PCO credit will be available. Wine and hors d'oeuvres will be provided.