Submitted to: Plant Disease Publication Type: Peer Reviewed
Journal Publication Acceptance Date: December 3, 2011
Publication Date: February 10, 2012 Citation: Crosslin, J.,
Hamm, P., Rondon, S., Eggers, J., Munyaneza, J.E. 2012. First
report of zebra chip disease and Candidatus Liberibacter
solanacearum on potatoes in Oregon and Washington State. Plant
Disease. 96:452. Interpretive Summary: The zebra chip (ZC)
disease is a serious and emerging disease of potatoes. The
disease has been reported in various parts of the south-western
US, Mexico, Central America, and recently in New Zealand. In
September of 2011, symptoms consistent with the ZC disease were
observed in potato tubers grown in northern Oregon and southern
Washington State. Tissue samples were tested by the polymerase
chain reaction for “Candidatus Liberibacter solanacearum”, the
bacterium associated with ZC. Nearly all of these samples were
positive for the bacterium. DNA sequence analysis confirmed “Ca.
L. solanacearum”. These results provided th