Rust of Chrysanthemum

Puccinia chrysanthemi

Description:

A fungal disease that causes blister like swellings, usually on the underside of leaves, which burst and release a mass of powdery, dark brown spores. These pustules may be surrounded by a ring of secondary pustules. With severe infections, leaves may wither and fall and plant growth is reduced.

Species Affected:

Carnations, Chrysanthemum

Biology:

Favoured by moist weather.
Spores are spread by wind.

Life Cycle:

Origin and History:

Distribution:

Significance:

Management and Control:

Plant tolerant varieties.
Remove and destroy diseased leaves.
Apply fungicides as soon as the disease is seen.

Related and Similar Species:

References:

1291

Acknowledgments:

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