Factors influencing Phytophthora ramorum infectivity on Umbellularia californica and testing of a defoliation-based control method

Christine Windsor Colijn; Michael Cohen; Steve Johnston; Whalen Dillon; Nathan Rank

Treesearch

Factors influencing Phytophthora ramorum infectivity on Umbellularia californica and testing of a defoliation-based control method

Informally Refereed

Authors:

Christine Windsor Colijn, Michael Cohen, Steve Johnston, Whalen Dillon, Nathan Rank

Year:

2013

Type:

General Technical Report

Station:

Pacific Southwest Research Station

Source:

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: p. 126

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Abstract

The primary foliar host for Phytophthora ramorum is California bay laurel, Umbellularia californica (Hook. & Arn.) Nutt., a main reservoir for the pathogen in California woodlands. We investigated environmental and pathogen-mediated influences on incidence and severity of P. ramorum infection of U. californica, as well as developing non-destructive means for controlling P. ramorum in woodlands.

Parent Publication

Proceedings of the sudden oak death fifth science symposium

Keywords

Sudden oak death, Phytophthora ramorum, invasive species, tanoak, Notholithocarpus densiflorus, coast live oak, Quercus agrifolia, Japanese larch, Larix kaempferi

Citation

Colijn, Christine Windsor; Cohen, Michael; Johnston, Steve; Dillon, Whalen; Rank, Nathan. 2013. Factors influencing Phytophthora ramorum infectivity on Umbellularia californica and testing of a defoliation-based control method. 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: p. 126.