defoliate• Across the river, the Viet Cong territory was a number of scalpedhills: it had been defoliated.• The worstsingle year was 1981, when twelve million acres were defoliated.• These trees are eaten but not defoliated.• The forest had already been defoliated and the oaks and aspens were expendingpreciousenergy sending out a second flush of leaves.• The leaves are evergreen or semi-evergreen since they can be heavily defoliated in severewinters.• So far, some sixty million acres of Eastern and Midwestern forest have been defoliated over the years.• The adultsdefoliate plants, and the larvaefeed on roots.• These same nitrogenoxides, in high but apparently plausibleconcentrations, will defoliate plants.