Slime mold is the casual name given for a soil-dwelling, single-celled primitive organism that combines with other cells to form a plasmodium—essentially, a blob (kind of like an amoeba).
The plasmodium, which varies greatly in size depending on the species, moves around in a creeping or crawling manner as the cells multiply, consuming the bacteria in organic matter as it goes.
Like true fungi, slime mold is spread by spores through the air. After it goes through the slimy stage, it begins to crust over and turn brown.
The most effective way to get rid of dog vomit fungus in your yard is to remove it while it still looks like slime.
Using any tool to pick up the dog vomit fungus will stick the spores to your tool, meaning you’ll have to spend time cleaning your tool to make sure it doesn’t spread to other areas of the garden.