RT Journal Article SR Electronic T1 Weed Control in Landscape Plantings JF Arboriculture & Urban Forestry (AUF) FD International Society of Arboriculture SP 85 OP 88 DO 10.48044/jauf.1981.020 VO 7 IS 4 A1 J.F. Ahrens YR 1981 UL http://auf.isa-arbor.com/content/7/4/85.abstract AB