Tree Tech Microinjection Systems and Bayer Environmental Science present Merit Injectable, a powerful new product to inject in the tree trunk or root flare tissue. Merit Injectable contains more active ingredient (17.1%) than other trunk injection products on the market and is available in easy-to-use leak-proof 3 ml or 6 ml units. In addition to common pests, tough-to-control insect pests such as Asian longhorned beetles, emerald ash borers, and hemlock woolly adelgids are controlled with Merit Injectable.