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ahura999

Rust Galls on acacia

Question

Hello I have recently discovered reddish purple cauliflower type growths on some acacias in my area. They are commonly called 'rust' or 'galls' . I have taken samples to the herbarium at the botanic gardens and also the museum, entomology (insect) dept of the state museum, and no-one can tell me 'exactly' what they are or what forms them.

The research i have done indicates that they could be caused by fungi or insects.

Has anyone seen these before?

Does anyone know what they are ?

159096d1267948704-invasive-fungi-acacia-species-img_0550.gif

159095d1267948130-invasive-fungi-acacia-species-img_0547.jpg

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