Fungus

Asked August 14, 2019, 2:49 PM EDT

We have black leaves that get on deck and lawn
Have black powdery stuff on them. Makes big yellow spots on lawn and plants in planters get spots and end up dying. Is this s mold or fungus?

Klamath County Oregon mold fungi horticulture

1 Response

Hello, thanks for your question. I will need a little more info to help you out. Are the black leaves coming from a tree? What kind of tree? are the leaves sticky, or are there other sticky leaves on the tree?
I suspect you are dealing with sooty mold. It is an issue that arises from the presence of insects, commonly aphids, on plant material. However, it is difficult to say with certainty based on the info provided. here is a link to info on sooty mold:

I hope you find this information helpful,
Nicole