Michigan State University Extension
Van Buren County District Extension Fruit Agent Mark Longstroth has put together this web page that includes factsheets and MSUE bulletins on pest control and cultural practices of apples, grapes, blueberries and small fruits. There are also articles of general interest and a pest of the month feature. This site is full of excellent photographs of insect and disease symptoms.

Insect and Disease Fact Sheets (Cornell University)

Northwest Berry and Grape Information Network
A collaboration by Oregon State University, University of Idaho, Washington State University and the USDA/ARS, this site contains fact sheets and links to pages related to production practices for blueberries. There are also recommendations and links to general fruit growing topics such as pest management, organic production, irrigation, and pollination.