Scale on Blueberry, Goji Berry, and Hydrangeas
I was wondering how to get rid of scale that causes the black sooty stuff on leaves of several of my plants? It's weird because the scale is not visible to me at all, but I searched the internet and identified what was happening to my plant leaves as what a certain type of scale causes when infesting a plant. I don't use pesticides of any kind, so I was wondering if there is something that kills this type of scale 'naturally'?
Certified GKH Gardening Expert
Try neem oil. It is effective in treating both the scale problem and sooty mold issue. It is also perfectly safe to use. Here is more information: https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm