One easy step protects roots, branches, leaves and new growth. Easy-to-use: just mix with water and sprinkle around tree. No need for spraying. Long-lasting systemic insecticide protection lasts for up to 12 months. Systemic protection won't wash off. Will help protect against Emerald Ash Borer. This product will not kill the borer or help an already infected tree but will protect a healthy Ash tree against the borer.