Ask-a-Dave's-Gardener: worried about this returning to my Black eyed susans this year, 1 by kbkar

kbkar wrote:
Last year this problem overwhelmed my black - eyed susans and also infected adjacent coneflowers. It\'s like a black inky stain with green bumps in the middle of each.
I tried removing the infected leaves and I used insecticidal soap but I think it was too late by then. Will this issue return this year? Should I spray the plants now with the insecticidal soap? The flowers are beginning to show their early spring growth and some of the leaves are a little dark already. HELP! PLEASE! Love these flowers.


This message was edited Apr 12, 2021 9:17 AM

This message was edited Apr 12, 2021 9:26 AM