Citrus Pests and Diseases is a symptom based app for detecting and screening pests and diseases of citrus. It is an illustration based identification guide that encompasses citrus diseases and citrus pests that are in the United States as well as those of immediate concern. Search categories in the app include: scientific name, other common names, damages, symptoms, host range, references, and distribution with additional information about citrus pests and diseases. Fact sheets also include information on other pests and diseases which may be easily confused with a suspect citrus disease or citrus pest.