Resources by Region

Northeast

• New York. Disease Fact Sheets of Annuals and Perennials (Cornell University).

North Central

• Illinois. Focus on Plant Problems: Diseases of Perennial Flowers (University of Illinois Extension). A guide to common perennial flower diseases.

• Minnesota. Plant Disease Diagnostics: Annuals/Perennials (University of Minnesota). A diagnostic tool in which you first choose the host plant and then select the part of the plant affected.

• Minnesota. Flower Insects/Disease (University of Minnesota). A listing of flower insect- and disease-related articles.

West

• California. Pests in Gardens and Landscapes — Flowers (University of California). Problems for specific flowers in California.

• Idaho. Annuals: Disease Problems (University of Idaho). A look at common disease problems of annual flowers.

South

• Kentucky. Guide for Control of Annual and Perennial Flower and Ground Cover Diseases in the Landscape (University of Kentucky).

• North Carolina. Insects and Diseases of Flowers (Clemson University).

Local Extension Service

• Check your state’s Extension service Web site and search for information on flower problems, such as insects, diseases, and abiotic/cultural problems. Your state’s Extension office will have the most relevant information for your area.