Hi, I have a small mimosa tree, it generally looks very healthy except there are clusters of white crustation like mounds attached to the underside of the branches. I have scoured the internet to find out what they are but so far no luck. I have treated the tree with anti fungus sprays and general pest and bug sprays but this has not worked. I have attached a photo to show the problem. If you know what this is and how to treat it I would be very grateful, regards, Gerald.
- 31 Dec, 2010