Q.I Have Sticky Curling Leaves On My Flowering Cherry Tree And Have Noticed Sticky Residue On A Clematis
I pulled off a clump of sticky new leaves on my cherry tree last week and noticed black fly. I sprayed the tree then but I noticed this morning that more leaves are curling and sticky. I am new to gardening and am not sure how to contain this disease.

GKH_Susan
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on June 8, 2021
It sounds like black cherry aphids and this article tells you what to do:
https://www.gardeningknowhow.com/edible/fruits/cherry/managing-black-cherry-aphids.htm
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