Diablo Ninebark infested with....
My beautiful Diablo Ninebark are infested with tiny green insects all along their stems, the infestation is impressive. I have had the problem last year for the first time and used my garden hose to remove them but this year, it is worst than ever.
What are they called? If I leave them on the shrubs will it damage the shrubs? It does not seem right now to be eating the leaves or the flowers buds but they sure are not attractive.