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Orange Rust of Brambles

Gail Ruhl, Plant Disease Diagnostician, Purdue University

Orange rust, a fungal disease of brambles appears in early spring. Leaves of infected plants may appear chlorotic (yellow). Orange rust pustules develop on lower leaf surfaces. Later in the season, the symptoms are not as easily detected. This disease is systemic (within the plant) and control measures are limited to the removal and destruction of the infected plant, including the roots. For the most thorough control, infected plants should be removed before the orange pustules begin to release spores. Orange rust occurs most commonly on blackberries, dewberries and black raspberries. Some cultivars are resistant. The disease is not a problem on red raspberry.

For more information please refer to the following website:

http://ohioline.osu.edu/hyg-fact/3000/3010.html

Click on the small image to view a larger image.

Orange Rust of Brambles Orange Rust of Brambles
Orange Rust of Brambles
(Photos by Bruce Bordelon, Extension Specialist, Horticulture)
Orange Rust of Brambles
Photos by Steve Mayer, Marion County CES
Orange Rust of Brambles Orange Rust of Brambles
Orange Rust of Brambles
Photos by Steve Mayer, Marion County CES

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Last updated: 23 May 2002/tlm.
The Plant & Pest Diagnostic Laboratory at Purdue University.