Can somebody explain what is going on here?

  1. Foam forms on the trunks of trees in heavy rains because of chemical interactions similar to those that occur when you make soap. On pine trees, foam forms because some of the chemicals found in pine sap are soap-like. On other trees, sometimes foam is formed from a chemical process that is created by the combination of air pollutants and plant materials. The air pollutants land on trees during dry periods and build up. During rains, they interact chemically, forming a soap and run down the trunks, foaming as it hits bumps in the bark. A similar process occurs on roads when rain occurs after a dry spell, leaving small pockets of foam by the edges of the road.

  2. Hijacking the top comment, this actually looks like slime flux, characterized by runny sap, darkened bark along the flow path, and the frothy mixture at the bottom of the tree. It’s a bacterial/yeast infection that forms in cracks in the bark. The bacteria feed on the leaking sap and over time produce gasses, which then combine with byproducts of consumption to create a foamy mixture. The pressure forces the mixture out of the tree and boom. Nasty sappy foam.

  3. We need to start making the people that actual answer the questions or give accurate information on posts like this higher upvotes and then allow us to scroll through the imo subpar jokes.

  4. Slime flux. It’s a bacterial disease. As it grows inside the tree, CO2 is released, fermentation occurs, and the increased pressure forces this foam out.

  5. Your tree is laying eggs. Its typical ent mating season so nothing to worry about, just dont make any sudden movements and you wont be in any danger.

  6. Thanks OP for asking a question that I had 45 years ago when I saw the same stuff on a tree in my childhood yard, really!!

  7. At a certain age, boy trees notice some strange changes to their bodies. Then, when a boy tree likes a girl tree very much…

  8. I agree with those who have said slime flux. We cut down a maple tree that - unbeknownst to us - had slime flux. That stuff bubbled out of the trunk and up from underground roots for weeks. We thought we had an underground septic tank. It stank and attracted flies and wasps. It took us a while - and a tree expert - to figure out what it was. Even two years later, if we dig down and hit one of the roots, the flies and wasps would congregate on that patch of earth. The good news is that it’s not dangerous in any way.

  9. Infection inside the trunk creates a fermented juce... bees, bugs and birds drink it up and get their buzz on👍🤣😉 Happened to my Willow Tree and eventually killed the tree...

  10. I would say this could be some kind of tree sap. Maybe heavy rain caused a chemical reaction with the sap causing it to foam the sap in some way

  11. I believe it is some type of yeast infection. Does it have a sour or fermented smell? As the infection gets worse it begins to build up pressure in the tree causing it to spring leaks. I don't there is a treatment for it, but i would consult a professional.

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