Cornell Cooperative Extension (CCE) puts knowledge to work in pursuit of economic vitality, ecological sustainability and social well-being.

Rooted in every county of the state, we bring local experience and research-based solutions together, helping New York state families and communities thrive in our rapidly changing world.

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Our work

Poinsettias in full bloom at Emma's Garden Growers, a Long Island plant wholesaler whose owners have been relying on Cornell's services for generations.

News

From root rot and powdery mildew to white flies and Lewis mites, the threats to poinsettias abound - NYS growers persevere with the support and expertise of Cornell faculty and staff.

  • Cornell Cooperative Extension
  • School of Integrative Plant Science
  • Horticulture Section