Maple Trees

Sooty Mold


Anonymous added on October 11, 2012 | Answered

I finally discovered what the heavy black stuff on my deck and concrete drive is. It's sooty mold. All I have around is 100 year old, maple, oak and pine trees. How do I get rid of the aphids (if that's the problem) from such large plants? It took me 5 hours of constant high pressure cleaning to get most of the black off my 8 X 20' deck. A large driveway is still covered and there is a lot of sticky stuff on my car and husband's. Smaller plants such as hostas have quite a bit also. Who do I call to clean the trees off?


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ANSWERS
Nikki
Certified GKH Gardening Expert
Answered on October 12, 2012

Neem oil can be used to get rid of the pests as well as the fungus This article will help: https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

An arborist can help, especially if pruning becomes necessary, but you should be able to mix the neem oil in a sprayer to treat the trees.

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