Fig 3.

Mean (±SE) cumulative Varroa mite mortality (%) in the glass vial test during 4 h (a) and 24 h (b) assessments. Mites and bees were exposed to different doses of amitraz (3.91 mg, 0.391 mg or 0.0319 mg), solvent (acetone) or left untreated (control). The graph indicates average (open circles and numbers) and median (dash lines) of cumulative mite mortality for replicates in each concentration of amitraz (n = 3), acetone (n = 3) or control (n = 3). Means followed by the same letter among treatments in each assessment are not significantly different (p> 0.05).