I’ve noticed these grapefruit/softball-sized growths on the side of this big old Red Oak (Quercus rubra) before. But on my most recent pass, there was a new one. Turns out to be a fungus.
Oak
5 responses to “Oak”
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well, what are they? My oaks have them also and some are a lot bigger than grapefruit. I always called them tumors.
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They are like a gall: something, bacteria or virus, causing the tree to make these growths. Not sure of specifics, though.
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I wonder if mine are something different. They get larger over time and I have never seen one suddenly appear and certainly never saw one of a different color. Any more thoughts would be appreciated.
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[…] for gnomes.in the same patch. There used to be a tree here.The mycelium don’t forget.I guess I finally solved this mystery. Puffballs. You know, that time I went out with the mushroom club hoping to learn something, I did, […]
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[…] of my favorite old Red Oaks! That’s about 7 feet of stump still to go. This is the tree whose globular fungal growths, which have nothing to do with the wilt as far as I’ve been able to tell, have piqued my […]
Backyard and Beyond 
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