Fact Sheet No. 200, UMaine Extension No. 2372 Prepared by Judith A. Collins, Assistant Scientist, and H. Y. Forsythe, Jr., Professor of Entomology, in cooperation with David Yarborough, Extension Blueberry Specialist, 1995. Updated by Lily Calderwood, Extension Wild Blueberry Specialist, 2020. Description The immature flea beetle is a black larva, 3/8-inch long when fully grown