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Cumbria, United Kingdom
A forester, naturalist and environmentalist.

Tuesday, 17 April 2012

Pest and disease pics

Just a few photos of different tree pathogens seen in the past few weeks:

Weeping lesions on the base of a birch. Closer inspection revealed...



 ...bootlaces of Armillaria, or honey fungus. Bad news for the tree, but good news for mushroom foragers!


Beech scale insect (Cryptococcus fagisuga) on, well, a beech 


Daedaleopsis confragosa on a dysfunctional stem of a Cotoneaster shrub


Kretzschmaria deusta at the base of a Juglans regia, showing both the anamorph, vegetative phase (light grey) and teleomorph, reproductive phase (black) fruiting bodies
 .
Weeping lesions on the stem of a beech (Fagus sylvatica) that most likely indicate infection by a Phytophthora pathogen (ramorumkernoviae?)

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