Pest Profile Photo credit: Dave Rintoul, bugguide.net Licensed under a Creative Commons License Common Name: Twig girdler Scientific Name: Oncideres cingulata Order and Family: Coleoptera; Cerambycidae Size and Appearance: Length (mm) Appearance Egg Elongated-oval White to cream in color 2-3mm 1 egg per pit or niche made in the bark of girdled twigs Females cover pit or niche with a substance that tends to glisten Larva/Nymph White, legless grubs 16-25mm Cylindrical in shape but tapered towards the rear Distinctly segmented Adult Typical longhorned beetle Cylindrical body that is grayish brown in color 12-17mm Has a broad, ashy-gray band across the middle of the wing covers Antennae have 11 segments Pupa (if applicable) White to cream but become darker as the pupa nears adulthood ~12-17m No covering cocoon Antennae, legs, and wing covers are visible Type of feeder (Chewing, sucking, etc.): Both larvae and adults have chewing mouthparts Host plant/s: Elm, hickory, oak, linden, hackberry, apple, pecan, persimmon, poplar, sour gum, honeylocust, dogwood, and some flowering fruit trees. Description of Damage (larvae and adults): Larvae of twig girdlers spend most of their time feeding unseen in dead girdled twigs on the ground until they reach adulthood. After that time, they will emerge from the dead twigs and begin feeding on live twigs of the host tree. Damage is usually minor, consisting of small twigs and branch breaking away or hanging loosely on the tree. However, in heavily infested trees, damage could result in tree death, stunted growth, deformation, or reduced fruit and nut yields the following year(s). Adult females will cut V-shaped pits or niches along girdled twigs to lay their egg in. References: Baker, J., & Bambara, S. (2001). TWIG GIRDLER. Retrieved March 21, 2016, from https://www.ces.ncsu.edu/depts/ent/notes/O&T/trees/note96/note96.html Hyche, L. L. (1995, July). THE TWIG GIRDLER: A GUIDE TO RECOGNITION AND HABITS IN ALABAMA. Retrieved March 24, 2017, from http://enpp.auburn.edu/outreach/web-publications/twig- girdler/ Problem: Twig Girdler - Oncideres cingulata [PDF]. (2016, February 3). Manhattan, KS: Kansas State Unviversity - Research & Extension. Rintoul, D. (2013, October 3). Rintoul, D. (2013, October 3). Twig girdler - Oncideres cingulata. Retrieved March 24, 2017, from http://bugguide.net/node/view/853002/bgimage .