Quantifying the Impact of Woodpecker Predation on Population Dynamics of the Emerald Ash Borer (Agrilus planipennis)
Figure 1
Mean wild EAB density (A) and site crown condition (B) at sites in Maryland.
Crown condition was measured on a scale of 1–5, with 1 representing healthy trees and 5 representing trees with >80% reduction in crown cover. Shown are sites located in eastern Allegany County (solid) and sites in southwestern Prince George's County and northeastern Charles County (open), with standard errors.