A gummy white substance "growing?" on the soil has appeared in...

Asked July 10, 2015, 6:03 PM EDT

A gummy white substance "growing?" on the soil has appeared in several locations in our yard, often under mulch. Is it a fungus? what is it? what should we do about it? Thank you.

Hennepin County Minnesota

4 Responses

I suspect this is mycellium formed by the organisms that do the work of decomposition, but a couple of good quality photos would help us make a better identification.

I will look for your response.

Here are two images of the substance. One shows forming in place in the soil; the other shows sections of it after I peeled it off the dirt (also a side view to see its thickness).
Thank you.

oops. second image; forming in place in the soil.

This is indeed mycileum - the rooting system of fungi (mushrooms). It is common to see this growth in mulch that remains undisturbed for a while. It is an important part of the eco-system and will not cause harm to any of your plants.

If it bothers you, you can gently stir up the mulch so that it is drier.

Here is more information:
http://www.clemson.edu/extension/hgic/plants/other/compost_mulch/hgic1604.html