Knowledgebase
Fungus on pin tree? #823795
Asked March 29, 2023, 8:11 AM EDT
Harris County Texas
Expert Response
This curious organism growing at the base of your pine tree is called a slime mold. There are many different kinds of slime molds, but they are all saprophytic - they live on dead substrates. They commonly spread into your planting on commercial mulch, and will appear when the mulch is wetted by rain or irrigation water. They do absolutely no harm to the tree and can be washed away with a hose if you find them objectionable. You may even be able to remove the mold with a broom.
No other measures are needed to deal with slime molds. You do not indicate that the tree seems to be in any stress or is expressing any symptoms, so I will assume it is healthy.