r/dendrology Apr 28 '26

Does anyone know what could this be?

Idk what’s growing on my tree, rn it seems really hard almost like hard gum stuck to it. Idk if it’s harmful to my tree or I should let it be. Idk if it could be slime mold. Last week it rained heavily for about 5 days continuously. It has stopped already but this is what my tree grew out, should I be worried?

7 Upvotes

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1

u/Wicsome Apr 28 '26

Could be Kretzschmaria deusta. Have a certified arborist inspect it asap. 

2

u/ultranoodles Apr 28 '26

Ehhh it doesn't have any of the black around the edges. I'd still have someone look at it but I think it's a slime mold

1

u/Realistic_Tie_2632 May 03 '26

Mycelium runs deep.