%0 Journal Article %A J.T. Walker %T A Need for Urban IPM %D 1981 %R 10.48044/jauf.1981.050 %J Arboriculture & Urban Forestry (AUF) %P 204-207 %V 7 %N 8 %U https://auf.isa-arbor.com/content/isa/7/8/204.full.pdf