Rust of Chrysanthemum
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:
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:
Collated by HerbiGuide. Phone 08 98444064 or www.HerbiGuide.com.au for more information.