Yellow foamy stuff on soil

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nikollierossimo Oklahoma City, OK May 15, 2009

Hi, new to Dave's garden but not to gardening...I'm in a new raised bed garden I put together last year. I've seen this several times now...a weird yellow, foamy stuff that seems to come out of nowhere. It first looks like little bits of yellow dots spread around but by the next day it looks like foam that is hard to the touch. I don't want to disturb it if it is beneficial....it doesn't seem to bother anything, but I was just wondering what the heck it is? Thanks!

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duchessdreams Reno, NV May 15, 2009

I have no idea. But you might want to post on the soil and composing forum. Hopefuly someone else will have more to answer you =)

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gcorrier Lenoir City, TN May 15, 2009

If my memory serves we grew something like this in high school. Science class I think. It was a type of yellow mold. It's been 20+ years so I could be sadly mistaken. Can't recall if the yellow stuff we grew was toxic in any way but being as it was in school enviornment I would hazard to guess probably not.

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Metrosideros Keaau, HI May 15, 2009

Sounds like you have a plasmodial slime mold known as Fuligo septica. It grows on rotting plant material (dead wood and leaves) and it not a problem to your plants.

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nikollierossimo Oklahoma City, OK May 15, 2009

Metrosideros, you are right! I googled it and that is indeed what I have. It has rained so much here I had a feeling it had to do with the muck and moisture around here....I've never had it in my other gardens so this was a new thing for me! Thanks for satisfying my curiosity...it was starting to really make me crazy!

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annebonannie Memphis, TN May 18, 2009

Also charmingly known as the "dog's vomit slime mold". Tom Volk's mycology website has it as one of their fungus of the month. Neato and interesting, though not very pretty.

http://botit.botany.wisc.edu/toms_fungi/june99.html

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