Thursday, January 16, 2020

Week 49 - The Ground Is Frozen & The Wood Is Blue


Some folks have asked about the blue streaks in the pine-beetle-kill tongue and groove wooden planks in the ceiling.

Here's why:


The mountain pine beetle and the blue-stain fungus is an excellent example of symbiosis.  


The blue stain fungus travels from tree to tree on a special structure in the beetle's mouth parts. This is its means to travel to new trees.


The fungus helps the beetle by stopping the tree from producing its natural defense resin and the beetles are hence able to mine and lay eggs while avoiding the tree' defenses.


The blue stain fungus spores germinate and produce a thread-like mass that colonizes the phloem and sapwood.


Blue-stain spores are sticky and eventually block the water conducting columns of the tree draining the trees of their nutrients eventually causing the tree to starve to death.


Did you notice that there is one plank in the ceiling that is totally blue?  Don't let it irritate you.


Navajo rug weavers always add a small intentional mistake to a beautiful rug to illustrate that only "God" (translate to your own word) can make something that is perfect.


Enjoy our almost perfect ceiling! 


Research by Robyn Rathweg



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