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Treesearch

Diagnosis and Management of Phytophthora ramorum canker in canyon live oak, an atypical bole canker host

Informally Refereed
Download (PDF 113 KB): https://research.fs.usda.gov/download/treesearch/44124.pdf

Abstract

Diagnosis of sudden oak death (SOD) in tanoak (Notholithocarpus densiflorus (Hook. & Arn.) Manos, Cannon & S.H. Oh) and susceptible red/black oak species (coast live oak, Quercus agrifolia Née; Shreve oak, Q. parvula Greene var. shrevei (C.H. Mull.) Nixon; California black oak, Q. kelloggii Newb.) is facilitated by the fact that infected trees commonly develop obvious bleeding bark cankers. In contrast, canyon live oak (Q. chrysolepis Liebm.) exhibits a different pattern of symptom expression, which has made it difficult to identify and document Phytophthora ramorum bole cankers in this species.

Parent Publication

Citation

Swiecki, Tedmund J.; Bernhardt, Elizabeth; Aram, Kamyar; Rizzo, David. 2013. Diagnosis and Management of Phytophthora ramorum canker in canyon live oak, an atypical bole canker host. In: Frankel, S.J.; Kliejunas, J.T.; Palmieri, K.M.; Alexander, J.M. tech. coords. Proceedings of the sudden oak death fifth science symposium. Gen. Tech. Rep. PSW-GTR-243. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station: 80-83.