The average number of D. suzukii adults caught per trap per week and the number of D. suzukii adults reared per liter of fruit were analyzed for the three week period before the last insecticide spray prior to the final harvest at each site. Since fruit were not
commercially harvested at the minimally managed sites, the week of the most common final spray for the other sites was used for the minimally managed sites (week of 21 August 2011 and 5 August 2012). Adult flies caught in traps in both years were analyzed using
ANOVA while the number of adult SWD reared from fruit, or the number of Drosophila larvae detected in the salt samples, were analyzed using a t-test for 2011 data and ANOVA followed by Fisher’s LSD test for post-hoc comparisons in 2012.