Protect your trees and shrubs with Monterey Once a Year Insect Control II, a powerful systemic insecticide designed for long-lasting protection. Just one application provides up to a full year of control, killing existing insects and preventing new infestations. This easy-to-use formula is mixed with water and applied around the base of plants, where it is absorbed through the roots and carried throughout the entire plant for consistent, rainproof protection. Ideal for controlling pests like emerald ash borers, it delivers reliable, season-long defense to keep your landscape healthy and protected.
