Figure 2: Mean percentage (+ SE) of trees killed by Dendroctonus ponderosae on 0.4-ha experimental plots treated with and without Verbenone Plus (acetophenone, (E)-2-hexen-1-ol + (Z)-2-hexen-1-ol, and (–)-verbenone) at June Mountain Ski Area(37.75°N, 119.06°W; 3,012-m elevation), Inyo National Forest, California, USA, 2010.Means followed by the same letter within groups are not significantly different (t-test, P>0.05).