Hey /out/, can anybody tell me what this stuff is that's

aerial roots maybe

>>781476
i'm no tree doctor but those look like aerial roots to me

Where do you live, OP? If you are in the tropics, it might be something like Camillea leprieurii, which is a type of fungus found on rainforest trees. Maybe something similar? Otherwise maybe aerial roots as other anons have said. But I'm no expert.

>>781476
Looks like sawdust cores from a boring insect. Take a tooth pick and see if you can easily dig out the stuff.

>>781788
>>781791
acually i believe they are something called, "areiral Roots"

>>781814
Those are bore hole sawdust mixed with feces from some insect. Hence the easily broken nature of some in that OP photo. They look nothing like the aerial roots I've seen.

>>781476
Looks like tree morgeilans disease

The answers in this thread lol. "What is this?" "here's 10 different answers."

>>782097
Well, they are not aerial roots. Just an insect problem.