scholarly journals An examination of genetic variation and disease spread in Inonotus tomentosus in the sub-boreal spruce zone of British Columbia.

2005 ◽  
Author(s):  
Susan Gibson
Keyword(s):  
British Columbia ◽  
Genetic Variation ◽  
Disease Spread

scholarly journals Spore Dispersal by Dothistroma septosporum in Northwest British Columbia

2015 ◽  
Vol 105 (1) ◽  
pp. 69-79 ◽  
Author(s):  
Kennedy Boateng ◽  
Kathy J. Lewis
Keyword(s):  
British Columbia ◽  
Lodgepole Pine ◽  
Summer Precipitation ◽  
Disease Spread ◽  
Spore Dispersal ◽  
Mixed Species ◽  
Inoculum Sources ◽  
Pine Trees ◽  
Dothistroma Septosporum ◽  
Needle Blight

We studied spore dispersal by Dothistroma septosporum, causal agent of a serious outbreak of red band needle blight in lodgepole pine plantations in northwest British Columbia. Spore abundance was assessed at different distances and heights from inoculum sources and microclimatic factors were recorded during two consecutive years. Conidia were observed on spore traps from June to September during periods of rainfall. It was rare to detect spores more than 2 m away from inoculum sources. The timing and number of conidia dispersed were strongly tied to the climatic variables, particularly rainfall and leaf wetness. Should the trend toward increased spring and summer precipitation in the study area continue, the results suggest that disease spread and intensification will also increase. Increasing the planting distances between lodgepole pine trees through mixed species plantations and overall reduction in use of lodgepole pine for regeneration in wet areas are the best strategies to reduce the spread of the disease and enhance future productivity of plantations in the study area.

Polygamous Mating and High Levels of Genetic Variation in Lingcod, Ophiodon elongatus, of the Strait of Georgia, British Columbia

2004 ◽  
Vol 69 (1-4) ◽  
pp. 345-357 ◽  
Author(s):  
Ruth E. Withler ◽  
Jacquelynne R. King ◽  
Jeffrey B. Marliave ◽  
Brad Beaith ◽  
Shaorong Li ◽  
...  
Keyword(s):  
British Columbia ◽  
Genetic Variation ◽  
Strait Of Georgia ◽  
Ophiodon Elongatus

Variation in the Susceptibility of Lodgepole Pine Provenances to Sirococcus Shoot Blight

1973 ◽  
Vol 3 (4) ◽  
pp. 585-589 ◽  
Author(s):  
K. Illingworth
Keyword(s):  
British Columbia ◽  
Genetic Variation ◽  
Entire Range ◽  
Lodgepole Pine ◽  
Host Susceptibility ◽  
Marked Variation ◽  
Shoot Blight

Sirococcusstrobilinus Preuss. was identified as the cause of a shoot blight of lodgepole pine (Pinuscontorta Dougl. ex Loud.) seedlings grown in a nursery in central British Columbia. Marked variation in susceptibility to this fungus was noted among the 153 provenances representing the entire range of lodgepole pine. Genetic variation in host susceptibility is inferred.

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