G. S. ABAWI (1), C. H. Petzoldt (1), B. K. Gugino (2), J. A. LaMondia (3) (1) Cornell University, Geneva, NY, U.S.A.; (2) The Pennsylvania State University, University Park, PA, U.S.A.; (3) CT Agric. Exp. Station, Windsor, CT, U.S.A.