This new section is started to collect more information on diseases on Acacias. One of the most common diseases is caused by fungi, especially Ravenelia (Ravenelia natalensis; R. acaciae-senegalae; R. acacicola).
A collection of pictures of Pests and Diseases on Acacia Koa can be found here:
http://www.ctahr.hawaii.edu/nelsons/koa/koa.html

I will also include galls and other diseases/enemies like mistle-toes.

         Ravenelia, Sekhukhuneland, Mpumalanga/ South Africa, January 2007