Gail Ruhl, Interim P&PDL Director, Senior Plant Disease Diagnostician, Department of Botany & Plant Pathology, Purdue University
Walking through your rust-infected lawn may be just the ticket if you like
orange shoes. However, if orange is not your favorite color, you probably will
not appreciate this fungal turf disease!
Rust is a turf-grass disease (caused by a Puccinia species) that is most noticeable in late August and September and has shown up in many lawns this past week. The rust-colored, tiny spores of the fungus rub off easily on shoes, fingers, clothes and even animals romping through the grass. Rust infections are most common on Kentucky bluegrass and perennial ryegrass lawns. Rust will cause the turf to take on a generally yellow appearance and symptoms appear to be more evident when the weather is dry. Control recommendations include using blends of resistant turf cultivars and providing adequate water and fertility levels to keep the grass growing vigorously during dry periods. Fungicide treatments are recommended only if the lawn has experienced continuous heavy infections.
Refer to http://www.agcom.purdue.edu/AgCom/Pubs/BP/BP-110-W.pdf for more information on Rust on Turf.
Click on the small image to view a larger image.
Rust on turf
Rust on shoes
Photos courtesy of Purdue Turf Program
Overall view of
Close-up of rust pustules
Photos courtesy of Jonathan Ferris, Henry County Extension Office
Back to top of page | Past Pictures of the Week Index