Fact Sheets

Rhododendron: Tissue proliferation categories: Ornamentals Rhododendron Rhododendron Diseases Shrubs revision date: 2022-12-04 12:00 Rhododendron tissue proliferationPhoto by: R.S. Byther Biology There is no known cause of tissue proliferation, but it is currently believed to be a genetic abnormality. A swollen area or gall develops at the base of the trunk or (more rarely) on a […]

Rhododendron: Root weevils categories: Ornamentals Rhododendron Rhododendron Insects Shrubs revision date: 2023-04-04 12:00 Root weevil damage on rhododendron leavesPhoto by: A.L. Antonelli Biology Several species of weevils feed on rhododendrons. Characteristic damage includes notching of leaf edges by adults and minor to severe root and bark damage by larvae. Occasionally the larvae girdle the trunk […]