The eastern oak looper has a tan head and body, with many lengthwise, black, wavy lines. The larval segments have small, hairy tubercles. The linden looper has a rusty brown head, a tan back with numerous wavy black lines, and yellow sides. Coloring of both loopers varies with population densities. Identifying the Injury.
Older larvae consume the entire leaf, except the midribs and major veins.
Linden looper larva. Eastern Oak looper larva. Eggs hatch at about the time of bud break, and the young larvae begin feeding on the expanding foliage. Feeding continues for approximately 6 weeks, then the mature larvae enter the soil and pupate. Other natural enemies also help in control.