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Young pickleworm larvae are yellowish-white with a brownish head. There are numerous rows of dark spots in young larvae, but these disappear with age. Older larvae are greener and may turn pinkish and coppery close to pupation. Larval coloration may vary with their food plant. Mature larvae measure 25–30 mm (about 1 inch) long. Adult moths are distinctively colored with a wingspan of about 3 cm (1.2 inches). Both the front wing and the hind wing have a central yellow splotch bordered by chocolate brown; the central splotch is somewhat transparent. Legs and antennae are yellowish. Both sexes have a prominent brush of yellow hairs on the tip of the abdomen that serve in pheromone communication.
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Issued in furtherance of Cooperative Extension work, Virginia Polytechnic Institute and State University, Virginia State University, and the U.S. Department of Agriculture cooperating. Edwin J. Jones, Director, Virginia Cooperative Extension, Virginia Tech, Blacksburg; M. Ray McKinnie, Administrator, 1890 Extension Program, Virginia State University, Petersburg.
May 13, 2015