Last year, I ordered fourteen violets from Canyon Creek Nursery (Oroville, CA). A number of the plants had curiously rolled leaves. I removed the affected leaves but the problem continued to spread, so I sent an affected leaf to the company, asking how to deal with this. I received no response and two months later, wrote again and asked for guidance. Again my letter was ignored.
I have since found this is likely a type of midge - can anyone please point me to a photograph for positive identification?
Also, I continue to find affected leaves and continue to remove them as I find them, but I would love to find a solution that prevents this damage.
Thank you for any help.