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management of white pine blister rust

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7 years ago

Date created

Mar 1, 2020

Cards (7)

Section 1

(7 cards)

management of white pine blister rust

Front

-take 60 yrs to produce cones so breeding won't work -collect cones from apparent resistant trees -expose seedling to pathogen -wait 3 yrs - survived outplanted -~70% survive first few yers -doesnt address mountain pine beetle & climate change

Back

white pine blister rust

Front

-cronatium ribicola -exotic, Europe -host: all5 needles pine and ribes -close to 5 needle extinction -causes resinosis & flagging (red branches) -cankers in stem & event kills

Back

spruce broom rusts

Front

chrsomyta artostaphyli -alt between engelman spruce and kinnikinnik -forms witches broom on infected branches -usu not a problem unless severe -bird nesting habitat, traditional medicine -native

Back

history of white pine blister rust

Front

intro in the 1900 on both coasts as result of 'outsourcing' (~6% of seeds infected) immediate & widespread man: cutting infected trees, attempted extinction of all native currants; elimation of all commercial berry farms -breeding for resistance

Back

western gall rust

Front

-endocronartium harknessii -ponderosa & lodgepole -no alt hosts -branches eventually die -if main stem: young = lethal, old = persistent -native

Back

commander blister rust

Front

-cronartium comandare -ponder & lodge: alt -serious disease where conditions are right -considerable native resistant -as canker grows, they slough bark from older dead portions -when canker girdles, tree dies -food for rodents

Back

gen info

Front

-caused only by basidiomycete fungi -some, not all, have alt hosts -common names from colors of spore -require cool moist conditions

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