Condition of <i>Bombus impatiens</i> colonies that were evaluated immediately after being exposed to insecticide-treated turf with flowering white clover for 2 wk.

Plots were treated June 1; bee colonies were introduced the following day. Data are means (± SE). ANOVA (df = 2, 22): live, F = 4.57, P<0.05; dead, F = 9.88, P<0.01; wt live workers, F = 3.46, P = 0.05; live immature, F = 0.57, P = 0.57; dead immature, F = 9.25, P<0.01; honey pots, F = 3.56, P<0.05; hive wt, F = 0.69, P = 0.51; *denotes means significantly higher or lower than colonies on untreated turf (Dunnett's test, α = 0.05). aAll adults (other than original queen) were workers as there would not have been time for males to emerge from the brood (K. Skyrm, Koppert Biological Systems, personal communication). blarvae, pupae, and fully-formed workers still enclosed in the pupal exoskeleton within the cell. cadult workers and original queen.