Insectes et maladies. Astredhor : Astredhor, Institut technique de l'horticulture. Ent 462 - Lecture Materials. Home | Entomological Society of America (ESA) Ball Field Guide to Diseases of Greenhouse Ornamentals. By Margery L. Daughtrey and A. R. Chase This guide is designed to be used in the greenhouse. Ball Field Guide to Diseases of Greenhouse Ornamentals is designed to help greenhouse growers in identifying problems that develop in greenhouse foliage and flower crops. Margery Daughtrey has over 25 years of experience as a plant pathologist specializing in ornamental plant diseases. Photo contributorsIntroduction GlossaryReferencesAbout the authorsIndex.