black specks on concrete under trees

dmc · 6th July 2011, 05:06 PM

I have a concrete dog kennel under two trees. The trees are walnut and locust. Small black specks appear on the concrete. Which tree is dropping them?

Eric Frei · 6th July 2011, 05:16 PM

Sap suckers feeding on the leaves are likely excreting a product called honeydew which fungal sooty mould has grown on.

6th July 2011, 05:06 PM	#1
dmc I'm new here so be nice Join Date: Jul 2011 Location: Illinois Posts: 1	black specks on concrete under trees I have a concrete dog kennel under two trees. The trees are walnut and locust. Small black specks appear on the concrete. Which tree is dropping them?

6th July 2011, 05:16 PM	#2
Eric Frei Admin - Owner Palm & Tree Services in Brisbane Join Date: Jan 2007 Location: Brisbane Posts: 12,990	Re: black specks on concrete under trees Sap suckers feeding on the leaves are likely excreting a product called honeydew which fungal sooty mould has grown on. __________________ Protect your rights to work - Join Australian Tree Association My businesses:- Qualified Brisbane Palm and Tree Lopping \| Stump Grinding Brisbane \| Brisbane - Gold Coast Consulting Arborist

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