Ask a Question forum: black dust on leaves of vines

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Sep 22, 2016 11:15 AM CST
what is the black dust on my vines. spreading fast
Name: Anne
Summerville, SC (Zone 8a)
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Sep 22, 2016 11:22 AM CST
Hi Alan and welcome to NGA!

Sounds like you have Sooty Mold, Fumago vagens. It's a fungus that grows on the droppings of insects like aphids that sucks the sap from plants. The fix is get rid of the bugs then apply a fungicide to kill the mold. If there aren't too many leaves then you can wipe it off with a damp paper towel but you'll still need to get rid of the bugs.
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[Last edited by Xeramtheum - Sep 22, 2016 11:22 AM (+)]
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