TY - JOUR T1 - Davey Horticultural Institute Research JF - Arboriculture & Urban Forestry (AUF) JO - JOA SP - 106 LP - 109 DO - 10.48044/jauf.1979.025 VL - 5 IS - 5 AU - Henry Gilbertson AU - Dennis Chef AU - Balakrishna Rao Y1 - 1979/05/01 UR - http://auf.isa-arbor.com/content/5/5/106.abstract N2 - ER -