Unknown egg pods on Cerces Canadensis

Unknown egg pods on Cerces Canadensis

Observation - Unknown egg pods on Cerces Canadensis. Description: We have a purple-leaved Cerces Canadensis which is playing host to some very unusual 'egg pods'. The pods are attached to the bark ot the tree from the crown through to the tips of most branches. They look a little like very small ladybirds, but when remo

We have a purple-leaved Cerces Canadensis which is playing host to some very unusual 'egg pods'. The pods are attached to the bark ot the tree from the crown through to the tips of most branches. They look a little like very small ladybirds, but when removed, turn out to contain hundreds of tiny white eggs. There is no evidence of adverse effects on the tree. Any ideas?