Acecap Hywean systemic tree implants are a reliable solution for controlling pests like aphids, borers, and scale in ornamental trees. Containing 98.9% Acephate, these 3/8-inch implants are designed for easy installation in trees with a diameter of at least 3 inches. The dry-powder chemical is double-encapsulated, ensuring no exposure during handling. Once installed, the active ingredient moves throughout the tree within 3-4 days, providing season-long control in deciduous trees and up to two years in evergreen trees. The implants are simple to install with basic tools, making tree pest management accessible for professionals and homeowners alike. Delivered from the USA, with all duties included, in 11-13 days.