Trisha Shetty (Editor)

Blue stain fungus

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Kingdom  Fungi
Subphylum  Pezizomycotina
Family  Ophiostomataceae
Scientific name  Grosmannia clavigera
Higher classification  Grosmannia
Phylum  Ascomycota
Order  Ophiostomatales
Genus  Grosmannia
Rank  Species
Blue stain fungus Blue stain fungus Chlorociboria aeruginescens photo Gillian
Similar  Mountain pine beetle, Ophiostoma, Grosmannia, Dendroctonus, Ceratocystis

Blue stain fungus

The blue stain fungus, Grosmannia clavigera, is a species of sac fungus. It spreads to lodgepole pine, ponderosa pine, Douglas-fir, and whitebark pine trees from the body and a special structure in the heads of mountain pine beetles. The blue stain fungus has evolved a relationship with mountain pine beetles that allow them to travel from tree to tree on a special structure in the beetle’s heads and stops the tree from producing resin to pitch out or kill the beetle, encouraging the pine beetle infestation occurring all along the Rocky Mountains from Mexico into Canada. The beetles are able to mine and lay eggs while avoiding the tree’s defenses. The 33 Mb genome of this fungus was sequenced in 2009.


Blue stain fungus Toronto Wildlife More Bluestain Fungus

The blue stain fungus spores germinate and produce a thread like mass (mycelium) that colonizes the phloem and sapwood. Fungal spores are usually blown away by wind but blue-stain spores are "sticky." This process eventually blocks the nutrient-conducting columns of the tree draining the trees of their nutrients eventually causing the tree to starve to death. The symptoms and signs of blue stain fungus are a blue-gray discoloration of sapwood in wedge shapes of recently killed trees.

Blue stain fungus httpsuploadwikimediaorgwikipediacommonsthu

Preventing the blue stain would require that unfavorable conditions for the fungus be maintained such as: keeping the wood dry, protecting the wood from mountain pine beetles, and maintaining temperatures above or below ideal growing temperatures. The spread of blue stain fungus can only be controlled by protecting the trees from the mountain pine beetle.

Blue stain fungus Blue Stain Also Called Sap Stain Summer 2009

Pine tree removal with blue stain fungus

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Blue stain fungus Wikipedia

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