TY - JOUR AU - Paine, T. D. AU - Perry, E. J. AU - Koehler, C. S. TI - Resin midges in Monterey pine Christmas trees JF - California Agriculture JO - Calif Agr Y1 - 1990/11/01 VL - 44 IS - 6 SP - 4 EP - 6 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://www.ucanr.edu/sites/calagjournal/archive/?article=ca.v044n06p4 AB - Pine resin midges feed on fresh resin in wounds on Christmas trees. Though some growers perceive this as a problem, insecticide treatments are unwarranted — partly because they do not provide effective control, but mostly because consumers do not consider resin midge damage when they choose Christmas trees.