Inhave been battling scale on my potted plants for 2 years now. I have been able to control it on my potted citrus and bay plants by hand picking and spraying with neem oil and Safers soap. I now have a huge infestation on my potted corokias. It will be almost impossible to pick the scale off of the tiny stems and leaves. I am going to give the plants a good pruning and hope that a continued spray program will help. Is there anything more effective to control scale? I don’t want to to use a systemic solution but I am getting desperate. The corokias are quite large and they are overwintering under lights.