Fwd: [Comtf] COMTF October 2006 newsletter now available

**g*@aol.com**

Hi,

the October 2006 issue of the COMTF newsletter is now available at www.suddenoakdeath.org. 

A few Highlights are below. 

Sally Williams
Editor, Garden, Landscape & Horticulture Index
EBSCO Publishing
www.epnet.com 

...

 Experimental control efforts in Humboldt County CA.
...

 Manter, D.K., Karchesy, J.J., Kelsey, R.G. 2006. The sporicidal activity of yellow-cedar heartwood, essential oil and wood constituents towards Phytophthora ramorum in culture. For. Path 36:297â€“308.
Summary: In this paper, we demonstrate that 140 mg/kg of essential oil from the wood of yellow-cedar, incense cedar, Port-Orford-cedar or western juniper strongly inhibits zoospore germination and hyphal growth of Phytophthora ramorum in culture. ... Thus, spreading fresh shavings or chips of yellow-cedar heartwood with appreciable higher concentrations of the active compounds, over areas in infection zones where spores might be difficult to control such as trails and parking lots used by hikers and bicyclists, might be useful as part of an integrated program to minimize P. ramorum spore distribution. 

...

A final summary report on "Determining the susceptibility of key/dominant UK heathland species to Phytophthora kernoviae" has been published by the UK's Central Science Laboratory (funding was provided by DEFRA). To view the report in its entirety, go the DEFRA website at: http://www.defra.gov.uk/planth/kernovii/kernrep.pdf.
Summary: The susceptibility of eight commonly occurring heathland species to the recently described pathogen P. kernoviae (Brasier et al., 2006) was tested. Larger leaved species such as Vaccinium vitis-idaea, V. myrtillus and Arctostaphylos uva-ursi were highly susceptible; the pathogen killing both leaves and stems. Smaller-leaved species such as heathers and heaths, e.g. Erica cinerea, E. tetralix, and Calluna vulgaris were less susceptible, showing limited infection when the plant was wounded prior to inoculation. The sporulation potential of these smaller-leaved varieties was, however, significantly greater than the more susceptible plant species. 

...

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