Here in my part of Massachusetts, the Winter Moth is a big problem. I can tell you now one of the few pests which might bother seaberry /seabuckthorn plants is this Winter Moth caterpillar.
This little eating machine may be small, but it has a BIG appetite.
damage caused by the Winter Moth^
I have use rotenone (wikipedia description) to control the little bugger. There is some debate if rotenone is an organic control or not. Since I want to practice organic methods, this natural substance seems to be a good method for severe infestations. Insecticidal soap will be used to maintain the prevention of future appearances.
The seaberry seedlings are doing well. Next post to update........