Black film on plants and patio - Ask Extension
Hi - This year we have been getting a sticky black film on some of our plants and patio. Pictures attached of catmint, virbinum and an unidentified ...
Knowledgebase
Black film on plants and patio #842468
Asked July 25, 2023, 9:12 AM EDT
Hi - This year we have been getting a sticky black film on some of our plants and patio. Pictures attached of catmint, virbinum and an unidentified tree.
Campbell County Kentucky
Expert Response
I suggest you contact your local county agent directly. Contact information is below
Aubree Dawson
Extension Assistant, Agriculture and Natural Resources, Horticulture
Campbell County Extension Office
3500 Alexandria Pike
Highland Heights, Kentucky 41076-1705
It could be related to aphids. I am having a hard time seeing in the photos so please contact your local extension office for them to look in person or send to the diagnostic lab.
Here is an article for you to look at to compare the black film to - https://entomology.ca.uky.edu/ef103
