Fact Sheet No. 301, UMaine Extension No. 2420 Fact Sheet Prepared by C. S. Stubbs, Assistant Scientist;  F. A. Drummond, Associate Professor; and D. E. Yarborough, Extension Blueberry Specialist, The University of Maine, Orono, ME  04469. March 2000.  Acknowledgment: Research for this Fact Sheet was in part funded by Sustainable Agriculture Research and Education (SARE)