Foaming at the bark
On one of my walks in the forest I noticed some strange foam on two trees, first on a birch ...
Olympus Stylus 1s, 42mm, ISO400, f4, 1/50s
... and then also on an oak tree, less colourful though:
Olympus Stylus 1s, 42mm, ISO400, f4, 1/60s
I have no idea what causes this; the rain seemed nowhere near intense enough to make anything froth, and then there is the oil-effect on some of the bubbles I can't explain.
There are insects that use foam for protection, like the larvae of the meadow spittlebug (Philaenus spumarius):
Olympus XZ-1, 28mm, ISO100, f2.8, 1/320s
You can see it is safe from the ants, they are stumped.
I don't know if the foam on the trees is caused by insects as well, but it does look interesting, so I'm going to try to find out.
@ocrdu the one on the birch - no idea but judging from the look of that last pic must be a larva - green and very annoying they munched on my strawberries last year so I let the Great Tits in the green house :0!
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nice photo, i like
Crikey!
Thats crazy, wonder if its something left behind by an animal?
Thanks for sharing
I wondered if it was from an animal also. Or maybe it's like some kind of plant-produced soapy residue that foams when wet??