TY - JOUR AU - Ebeling, W. AU - Reierson, D. A. TI - The cockroach learns to avoid insecticides JF - California Agriculture JO - Calif Agr Y1 - 1969/02/01 VL - 23 IS - 2 SP - 12 EP - 15 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://www.ucanr.edu/sites/calagjournal/archive/?article=ca.v023n02p12 AB - “Choice box” for testing the repellency of insecticides to cockroaches. Back half of box is covered with fiberboard, creating preferred dark refuge for cockroaches. However, repellent insecticides will result in some of the insects learning to avoid the dark area before picking up a lethal dose.