insect or fungus - Knowledgebase Question

wilton manors, Fl
Question by aprilpeach1
September 27, 2009
Frangipangi: fuzzy orange spots underneath leaves


Image
Answer from NGA
September 27, 2009

0

Sounds like a rust disease to me. Frangipani rust is most noticeable in late summer and early autumn. Small yellow pustules appear on the undersides of leaves. They rupture and spread spores which pass the disease to other plants nearby. The upper sides of the leaves are brown and discoloured. Severe infections may cause the leaves to drop prematurely. Once a leaf has become infected, there is nothing that can be done for that leaf, and it will infect new leaves. Control begins with raking up and disposing of all infected leaves. 3 or 4 applications of a copper fungicide spray at 2 to 3 week intervals can also help break the rust cycle. Fungicides will allow the leaves to stay on the tree a few weeks longer, allowing it to store more food reserves and return from its winter dormancy with a stronger growth rate. Best wishes with your plant!

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