Table 2.

Estimated number of gypsy moth larvae and defoliation on oak trees treated with trunk barriers and burlap skirts.

SiteNumber of larvae removed per tree a,bNumber of larvae per m2cNumber of larvae per tree cDefoliation b
Harrisonburg35.4 ± 4.0 a94.1 ±21.5 a4,780 ± 2,041 a14.8 ±5.7 a
Pomona11.2 ± 3.1 a83.9 ± 16.7 a4,908 ± 1,581 a20.8 ± 4.4 b
Vienna5.7 ±3.1 a2I5.O± 17.0 b17,238 ± 1,610 b68.4 ± 4.4 c

  • Values reported are mean + SEM. Means within a column followed by the same letter are not significantly different at a 0.05 comparison-wise error rate.

  • ↵a Includes only trees with burlap skirts.

  • ↵b Data transformed to In (x + 10) prior to analysis.

  • ↵c Data transformed to In (x) prior to analysis.