RT Journal Article SR Electronic T1 Pheromone Trapping Applications for Monitoring European ELM Bark Beetle Populations JF Arboriculture & Urban Forestry (AUF) JO JOA FD International Society of Arboriculture SP 148 OP 152 DO 10.48044/joa.1990.16.6.148 VO 16 IS 6 A1 Christopher R. Yonker YR 1990 UL http://auf.isa-arbor.com/content/16/6/148.abstract AB