Host:rhododendrons and azaleas (Rhododendron spp.
L.) Descriptor: Sign Description: this disease is believed to be transmitted by the Rhododendron Leafhopper, Graphocephala fennahi, laying it's eggs in slits in the flower buds, providing a point of entry for the fungus. Garden pest that kills flower buds before maturity. Spore-producing bodies visible as little stalks with knobs at end (synnema releasing conidia). Image type: Field Image location: Boulevard Park, Seattle, Washington, United States