Pest Alert – Gladiolus Rust

GR pustules develop in transverse lines. Photo credit: FDACS-DPI.

For the third year in a row, gladiolus rust (Uromyces transversalis) has been confirmed in Manatee County according to a phytosanitary alert issued by the North American Plant Protection Organization

Gladiolus rust is a quarantine pest that infects members of the plant family Iridaceae, especially potted/cut-flower varieties of Gladiolus spp., Tritonia spp., Crocosmia spp., and Watsonia spp. It is listed as an organism of concern by the IPPC (International Plant Protection Convention).

Florida’s Division of Plant Industry and the USDA Animal and Plant Heath Inspection Service (APHIS) are working closely with the grower to mitigate spread of the pest to other states and countries.  Preventive actions include dipping plant material in fungicides and inspection/certification by APHIS prior to shipment.


About Kathy

Urban Horticulture Program Assistant with UF/IFAS Extension Manatee County.
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