EDIS - Rusts on Ornamentals in Florida
https://edis.ifas.ufl.edu/publication/pp172
University of Florida. Institute of Food and Agricultural Sciences Extension.
Electronic Data Information Source Publication #PP256
University of Florida. Institute of Food and Agricultural Sciences Extension.
Electronic Data Information Source Publication #PP256
USDA. Animal and Plant Health Inspection Service.
Google.
University of Georgia. Center for Invasive Species and Ecosystem Health.
Florida Department of Agriculture and Consumer Services. Division of Plant Industry.
See also: Plant Industry Pest Alerts for more pests/diseases
USDA. APHIS. Cooperative Agricultural Pest Survey. National Agricultural Pest Information System.
CABI. PlantwisePlus Knowledge Bank.
USDA. APHIS. Plant Protection and Quarantine.