In 2006, like other regions of Wisconsin in previous years of low moisture to drought conditions, saw significant increases in twospotted spider mite, (TSM) infestations. Lessons learned from these other regions and previous outbreaks in 1983, 1988, 1995, and 2005, indicated that soybean damage could be anticipated. Research trials for developing Integrated Pest Management (IPM) recommendations are difficult. Further, specific economic thresholds do not exist for twospotted spider mite in soybeans (Cullen, 2006).