What is this, it was like hair gell?

What is this, it was like hair gell?

Observation - What is this, it was like hair gell? - Global. Description: I noticed this 'goo' while in Japan recently. It was found throughout the canopy of this tree. Any ideas?

I noticed this 'goo' while in Japan recently. It was found throughout the canopy of this tree.
Any ideas?