Rust

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Rust Postules
Rust leaf lesions
  • Pathogen: Puccinia graminis Pers. (Kentucky bluegrass), Puccinia coronata Corda (perennial ryegrass, tall fescue), Puccinia cynodontis Lacroix (bermudagrass), Puccinia zoyisa Diet (zoyiagrass)


  • Common Names: Rust


  • Climatic Zone: temperate, subtropical


  • Geographic Distribution: North America, South America, Europe, East Asia, Australia, Africa


  • Favorable Conditions: Slow turfgrass growth, normally early spring, or fall


  • Hosts: Perennial ryegrass, Kentucky bluegrass, Tall fescue, Bermudagrass, Zoysiagrass


  • Symptoms: Protruding urediospores that have ruptured the leaf epidermis. Urediospores appear a rusty color (thus the common name)
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