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Delayed Emergence, Stem Distortion, Stunting, and Foliar Symptoms Associated with Tobacco Rattle Virus and Paratrichodorus Allius in Potatoes Grown in the Pacific Northwest

S. L. Gieck, N. L. David, P. B. Hamm, J. M. Crosslin, and R. E. Ingham

September 2007


This is the first report of stunting, stem distortion, delayed emergence and foliar TRV symptoms on potato in the Pacific Northwest where approximately 50% of the US potato crop is grown. The shift in use from 1,3 dichloropropene to oxamyl may suggest these symptoms will be more frequently observed in the future.


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