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    Author(s): Steven Swain; Matteo Garbelotto
    Date: 2006
    Source: In: Frankel, Susan J.; Shea, Patrick J.; and Haverty, Michael I., tech. coords. Proceedings of the sudden oak death second science symposium: the state of our knowledge. Gen. Tech. Rep. PSW-GTR-196. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture: 483-486
    Publication Series: General Technical Report (GTR)
    Station: Pacific Southwest Research Station
    PDF: View PDF  (23 KB)

    Description

    The survival rate of Phytophthora ramorum was assessed when introduced at high rates into composts of varying provenance and curing time, produced by both "turned windrow" and "forced air static pile" techniques. Survival in some compost media was high and statistically indistinguishable from positive controls (P<0.01), while other sources were statistically indistinguishable from negative controls (P<0.01). The difference between positive and negative controls was large and highly significant (P<0.01). We found no significant differences in survival rates between compost processing techniques or curing time. No compost material was so suppressive of P. ramorum that it could not be re-infested after the composting process was finished. This suggests that measures should be taken to insure that finished compost is not contaminated by infested greenwaste.

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    Citation

    Swain, Steven; Garbelotto, Matteo 2006. Extended abstract on the potential for Phytophthora ramorum to infest finished compost. In: Frankel, Susan J.; Shea, Patrick J.; and Haverty, Michael I., tech. coords. Proceedings of the sudden oak death second science symposium: the state of our knowledge. Gen. Tech. Rep. PSW-GTR-196. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture: 483-486

    Keywords

    pathogen, eradication, green-waste, survival, quarantine

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