%0 Generic %T The crown gall resolution : Approved by: American Phytopathological Society [and] American Association of Economic Entomologist. Endorsed by: Executive Committee, American Association of Nurserymen; Western Association of Nurserymen; Illinois Nurserymen's Association. Together with the questionnaires, the papers and discussion as presented at the symposium held in Cincinnati, Dec. 28th-Jan. 1st, 1923-24.