Rust of Ornamentals

Phragmidium and Puccinia species

Description:

Phragmidium rusts produce two types of spores on the undersides of leaves. Early in the season yellow to orange, powdery, wind blown spores are released and later in the season black or dark overwintering spores are produced.

Species Affected:

Ornamentals.
Chrysanthemums, Geraniums, Raspberry, Roses, Snap Dragons.

Biology:

Life Cycle:

Origin and History:

Distribution:

Significance:

Management and Control:

Apply fungicides.

Related and Similar Species:

References:

Acknowledgments:

Collated by HerbiGuide. Phone 08 98444064 or www.HerbiGuide.com.au for more information.