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edge of root disease center note progressively thinner crowns and - - PowerPoint PPT Presentation
edge of root disease center note progressively thinner crowns and - - PowerPoint PPT Presentation
edge of root disease center note progressively thinner crowns and shorter heights Lions tailing Heterobasidion annosum P strain button conks under bark conks inside stumps stringy decay of roots Heterobasidion annosum P-strain in action at
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Heterobasidion annosum P strain conks inside stumps button conks under bark stringy decay of roots
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Heterobasidion annosum P-strain in action at Yosemite village
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Heterobasidion annosum S strain on fir (Abies) stump
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Armillaria Complex of "biological species" mating group Species Pathogenicity / Virulence distr. NABS I
- A. ostoyae
major major pathogen pathogen on conifers, also attacks hardwoods, large clones NA, Eur. NABS NABS VI VI
- A. mellea
major major pathogen pathogen on hardwoods particularly ornamentals, also attacks conifers NA, Eur NABS NABS VII VII A. gallica (bulbosa) weak pathogen, but may act as a secondary invader of stressed trees, common in suppressed over mature hardwoods, very large clones NA, Eur.
- A. borealis
moderate pathogen, common butt rot
- f conifers in northern Europe
Eur
- A. cepistipes
similar to A.gallica in morphology and behavior, associated with butt rot of conifers in Finland NA, Eur NABS II
- A. gemina
apparently weak pathogen NA NABS III A. calvenscens Observed as a hardwood pathogen in the NE NA NABS V
- A. sinapina
Weak pathogen acts like A.gallica , haploids may be more virulent NA NABS NABS IX IX
- A. nabsnona
Weak pathogen acts like A.gallica , haploids may be more virulent NA NABS X unnamed NA NABS XI unnamed NA
bold species are known from California
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Armillaria mycelial fan under bark Armillaria rhizomorphs Aerial view of A ostoyea centers
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Armillaria mushrooms
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Blackstain (Leptographium wageneri var ponderosae) in ponderosa pine
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- L. wageneri var. ponderosae
- L. wageneri var. wageneri
- L. wageneri var. pseudotsugae
meadow boarder on Mt. Tam Mesa Verde Blodgett Forest
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Blackstain: cross-section of Douglas fir On smaller root
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Leptographium Mitotic spore state distribution
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Bluestain fungi Ophiostoma, Ceratocystis and others
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Ceratocystis Ophiostoma Perithecia Black Black or white Anamorphs (asexual states) Chalara Phialographium,Leptographium , Trichosporium , & other non-phialidic anamorphs Cell Walls Cellulose -. Rhamnose - Cellulose +. Rhamnose + Sensitivity to Cyclo-hexamide +
- Bluestain fungi
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Phellinus weirii aerial view
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Phellinus weirii causing a butt rot in Douglas-fir note resinosus
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Phellinus weirii laminar rot pattern and resupinate fruit body Phellinus weirii furry looking setae
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Phaeolus schweinitzii brown cubic butt-rot
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Inonotus triqueter X-section of fruitbody upper surface Lower surface (tubes)
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