Day, Eric R.Dellinger, Theresa A.2022-07-222022-07-222022http://hdl.handle.net/10919/111332Galls are abnormal growths of plant tissue induced by insects and other organisms. Gall-making parasites release growth-regulating chemicals as they feed, causing adjacent plant tissues to distort and form a gall. The parasite feeds and develops within the relative security of the gall. Several different groups of insects and one family of mites have developed the ability to induce plant galls. In addition, there are a few galls produced by nematodes, bacteria, fungi, and viruses.3 pagesapplication/pdfen-USVirginia Cooperative Extension materials are available for public use, re-print, or citation without further permission, provided the use includes credit to the author and to Virginia Cooperative Extension, Virginia Tech, and Virginia State University.Extension publicationhttps://www.pubs.ext.vt.edu/content/dam/pubs_ext_vt_edu/ENTO/ENTO-145/ENTO-505.pdfGallsCynipidae