Larval Host Plants: Larvae reportedly feed on sunflowers (Helianthus), including the following species that occur in North Carolina: Woodland Sunflower (H. divaricatus), Giant Sunflower (H. giganteus), and Jerusalem Artichoke (H. tuberosus) (Tietz, 1972; Wagner et al., 2011). There are also BugGuide records (MJ Hatfield) of larvae boring in Wild Quinine (Parthenium integrifolium), Canadian Lousewort (Pedicularis canadensis), and Canada Goldenrod (Solidago canadensis) in Iowa. - View |