Host:oak (Quercus spp.
L.) Descriptor: Symptoms Description: Fastidious xylem-inhabiting bacterium which occludes vascular tissue as it develops in the host. Symptomatic tree with crown dieback, premature leaf abcission, chlorotic and "scorched" foliage. Image type: Field Image location: United States
Specimen in collection: No Specimen Condition: Identification Method: