Clockwise from upper right, butterfly milkweed, blue woodsedge, ‘Walker’s Low’ catmint. 

Cutting back on herbicides. Saving time and labor weeding. Landscape managers stand to benefit from research from Cornell University’s Horticulture department and the NYS Integrated Pest Management Program on weed-suppressive groundcovers. This course profiles each of the top performing perennials. Fourteen in all —some familiar, others new. Growing conditions, plant attributes and landscape niche are all covered.

Successful completion of this module will earn you 0.75 recertification credits for New York State DEC certified pesticide applicators in categories 1a, 3a, 3b, 6a, 10, 24, and 25.

*If you are certified in Maryland, Pennsylvania, Rhode Island, or West Virginia, check the appropriate state-specific credit information page under the "Store Menu" to confirm approval and recertification credit values.

*Connecticut, Maine, Massachusetts, New Hampshire, and Vermont have approved all DLC courses and awards the same credits as New York.