Ornamental & Tree Diseases

Earlier this summer, when I was checking my azaleas for pest problems, I noticed patches of what I can only describe as "growth" on the surface of the hardwood mulch in my landscape beds. I was told this "growth" was a slime mold fungus. This stuff was bright yellow and ranged in size from an inch or so in diameter to several feet in other areas. I'm concerned. Just what is a slime mold fungus, and will it harm my azaleas or other landscape plants?

First, let's be sure you're dealing with a slime mold. Take a look at a common type to get a better idea. If this is the "growth" that appeared in your landscape bed, don't worry - you don't have a problem. Slime molds are harmless and won't damage landscape (or other plants for that matter). They just look a little strange. Find out more about these amazing creatures in "Slime Molds - No Danger to Your Plants."