License sales for the 2002 Wisconsin gun deer hunting season declined approximately 11% following the discovery of chronic wasting disease (CWD) in the state. This article examines the extent to which CWD influenced 2001 Wisconsin deer hunters who did not participate in the 2002 season. The article also compares 2002 hunters against those who dropped out in 2002 relative to their perceptions of risks associated with CWD and their trust in the Wisconsin Department of Natural Resources (WDNR). Data were obtained from a survey of 2001 resident Wisconsin deer hunters (n = 1,373, response rate = 67%). A cluster analysis of 14 possible reasons for not hunting indicated that about half (estimate = 52% ± 5%) of the 2001 Wisconsin hunters that did not participate in the 2002 season did not hunt because of Downloaded by [University of Sussex Library] at 16:13 04 February 2015 194 Jerry J. Vaske et al. CWD (e.g., not enough time, conflicting responsibilities). Individuals who dropped out for non-CWD reasons gave responses on perceived CWD risk and trust in WDNR that were statistically equivalent to those of 2002 gun hunters. Non-hunters who did not participate due to CWD were less likely to believe the information provided by the WDNR and were less trusting of this agency compared to those who hunted. These findings reinforce the role of social trust in fostering a positive relationship with an agency's stakeholders. CWD. The remaining non-hunters dropped out of gun deer hunting for a variety of reasons unrelated to