CoreTect® Tree and Shrub Tablets contain the active ingredient found in Merit, the world’s No. 1 tree and shrub insecticide, plus fertilizer. This product can be used when planting, or on established plants for controlled-release and long-residual systemic insect control. The tablets’ health-promoting properties also make plants stronger, healthier and more resistant to environmental stress.
Harrell's Balanced Approach is a scientifically supported, integrated, and proactive use of agronomic resources to maximize plant health and consistency.
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Don't grow it alone. Connect with Harrell's to harness the power of research, science, and support in ways you never thought possible.
In addition to being the nation’s largest distributor of branded fungicides, herbicides, and insecticides, Harrell’s produces custom-blended fertilizers, specialty liquids, and wetting agents. Additionally, Harrell’s is the exclusive US owner, formulator, and distributor of all POLYON® branded products.