Life Cycle of Phytophthora ramorum - Forest Phytophthoras of the ...

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Susceptibility and sporulation potential of P. ramorum on foliage of some common plants in PNW forests Evergreen • Salal (Gaultheria shallon) • Madrone (Arbutus menziesii) • Oregon grape (Mahonia nervosa) • Pacific rhododendron (Rhododendron macrophyllum) • CA bay laurel (Umbellularia californica) • English laurel (Prunus laurocerasus) • English ivy (Hedera helix) • English holly (Ilex aquifolium) • Himalayan blackberry (Rubus armenaicus) Deciduous • Bigleaf maple (Acer macrophyllum) • Vine maple (A. circinatum) • Garry oak (Quercus garryana) • Pacific dogwood (Cornus nuttallii) • Red osier dogwood (C. sericea) • Scouler’s willow (Salix scouleriana) • Red alder (Alnus rubra) • Snowberry (Symphoricarpos albus) • Baldhip rose (Rosa gymnocarpa) • Common hawthorn (Crataegus monogyna) • Japanese knotweed (Polygonum cuspidatum) Native Introduced
Some invasive plants are low risk for P. ramorum •Japanese knotweed (Polygonum cuspidatum) •English ivy (Hedera helix) •English holly (Ilex aquifolium) •Himalayan blackberry (Rubus armenaicus) Photo: Japanese knotweed Eradication, Ltd.
Page 1 and 2: Life Cycle of Phytophthora ramorum
Page 3 and 4: Phytophthora is not a fungus Eukary
Page 5 and 6: Some economically important species
Page 7 and 8: Chlamydospore germination after 24
Page 9 and 10: Zoospores Zoospore release is stimu
Page 11 and 12: P. ramorum genetics • Two mating
Page 13 and 14: P. ramorum genotypes Percent of sam
Page 15 and 16: Genotype analysis Repetitive elemen
Page 17 and 18: How P. ramorum spreads • Water: w
Page 19 and 20: Spread by animal vectors Snails - c
Page 21 and 22: Foliar hosts Epidemiologically impo
Page 23 and 24: The soil phase of P. ramorum • Pr
Page 25: Water Possible pathway in water: De
Page 29 and 30: Results of t-tests on F1 scores fro
Page 31 and 32: Other oomycete species found in soi
Page 33 and 34: Clade 6 Phytophthoras • Soilborne
Page 35 and 36: Clade K Pythiums Intermediate betwe
Page 37 and 38: Nursery Critical Control Points Inc
Page 39 and 40: Clean pots Steam sterilize or hot w
Page 42 and 43: P. ramorum can often be found in ru
Page 44 and 45: Organic soil treatments • Mulches
Page 46 and 47: On the web • Visit our website: h

Life Cycle of Phytophthora ramorum - Forest Phytophthoras of the ...

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