Rust of Carnations
Uromyces caryophyllinus

Uromyces dianthi

Description:

A fungal disease causing pale greyish areas on leaves stems and sepals that develop into blister like swellings on the underside of leaves that burst to release dark brown powdery spores. In severe infections, leaves may wither and plant growth is reduced. The original pustule is often surrounded by a ring of later pustules.

Species Affected:

Carnations.

Biology:

Favoured by moist weather.

Spores spread by wind.

Life Cycle:

Origin and History:

Distribution:

Significance:

Very common on Carnations.

Management and Control:

Remove and destroy infected leaves.

Apply fungicides as soon as the disease is seen.

Related and Similar Species:

References:

1205

Acknowledgments:

Collated by HerbiGuide. Phone 08 98444064 for more information.