Diameter and canopy area of experimental oak trees and preseason gypsy moth egg-mass density at three sites in Maryland and Virginia.
Site | Mean bolea diameter (cm) | Mean dripline area (m2) | Preseason egg masses per ha |
---|---|---|---|
Harrisonburg, VA | 38.7 ±1.4 | 54.9 ± 6.3 | 16,275 ±2,957 |
Pomona, MD | 41.0± 1.2 | 58.5 + 3.9 | 3,973 ± 963 |
Vienna, MD | 36.2 ± 1.5 | 77.7 + 6.6 | 9,806 ± 3,092 |
Values reported are mean ± SEM
↵a Diameter measured at a height of 1.5 m.