P. ramorum also manifests itself as a foliar or twig blight on more than 100 known plant species, including Douglas-fir, coast redwood, and numerous ornamentals, such as rhododendron and camellia.
From the sciencedaily.com
Taranaki's Pukeiti could soon add a new attraction to its world-renowned 360ha rhododendron gardens, which nestle in a rainforest between Mt Taranaki and the coast.
From the nzherald.co.nz
Once a much admired ornamental plant for Highland estates, rhododendron have spread aggressively on many Hebridean islands and west coast areas, chocking out native plants and dominating woodland.