QuestionsHow to growTrees and ShrubsPests and DiseasesAphid control in hedges 0 Vote Up Vote Down Mossie MacNamara asked 14 years ago What is the best systemic pesticide spray for wooly beech aphids control in a young beech hedge? Also, what is the best spray for aphids in a cotoneaster hedge? 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 7 years ago Any garden insecticide will control aphids if thoroughly applied, such as Westland Plant Rescue Fruit & Vegetable Conc. Bug Killer