Butternut
Guides
Aceria cinereae
butternut erineum mite
Aceria cinereae, the butternut erineum mite, is an eriophyid mite in the family Eriophyidae. Eriophyid mites are worm-like, four-legged plant parasites that are among the smallest arthropods, with some species measuring less than 0.1 mm. The genus Aceria contains many species that specialize on specific host plants, often causing distinctive growth abnormalities. A. cinereae has been observed 457 times according to iNaturalist records.
Conotrachelus juglandis
butternut curculio
Conotrachelus juglandis, the butternut curculio, is a true weevil in the family Curculionidae. It is associated with walnut species (Juglans), where it injures shoots and nuts. The species was first described in 1876 and occurs across eastern North America, from New England through southern Canada to the Great Plains, and south to Kansas, Alabama, and Georgia. Life history studies have been conducted in Connecticut (1912), West Virginia (1922), and Michigan (1979).
Eriocampa juglandis
Butternut Woollyworm, Butternut Woollyworm Sawfly, Butternut Wooly Worm
Eriocampa juglandis, commonly known as the butternut woollyworm, is a sawfly in the family Tenthredinidae. The larvae feed on leaves of butternut, black walnut, and hickory trees, and are notable for their distinctive white, woolly wax coating. Unlike true caterpillars, sawfly larvae possess six or more pairs of prolegs on their abdominal segments. The species has one generation per year, with larvae active in mid-summer and pupation occurring in soil over winter.