This map depicts the range of infestation and defoliation due to Jack Pine Budworm [Choristoneura pinus pinus Freeman Lepidoptera: Tortricidae] in Michigan over time.  Data are from Michigan Department of Natural Resources Forest Pest Reports.  (Maps digitized by Brad Conway, developed by Demetrios Gatziolis and Gem Castillo, animation by Thor Sawin, MSU Department of Forestry.)