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Welcome to UD Cooperative Extension


In 1869, the University of Delaware (UD) College of Agriculture and Natural Resources was established as the state’s land-grant university with a mission consisting of three elements: teaching, research and “extension”.

Cooperative Extension fulfills the third part of this mission: bringing knowledge to the people of Delaware. Today, we offer university knowledge, research and resources — just for you! You have questions. We have expert answers.

From nutrition classes and Master Naturalist courses to 4-H youth clubs and programs that support local agriculture — UD Cooperative Extension has something for everyone!

Video: This Is Delaware Cooperative Extension:

Managing Spotted Lanternflies

This destructive, invasive insect poses a threat to Delaware's agricultural economy. This winter and spring, it is important to watch for and destroy their eggs by scraping them into a plastic bag with rubbing alcohol.

Video: How to destroy Spotted Lanternfly eggs:

Trending stories

  • Adorable little girl planting seeds in the dirt of a raised bed.

    Hands in the Dirt

    May 17, 2022 | Written by Michele Walfred
    UD Cooperative Extension builds an outdoor classroom for Seaford school children.
  • Excellence in public service

    May 16, 2022 | Written by Jessica Henderson
    The Ratledge Family Award for Delaware Public Service reflects the family’s long-standing commitment to both the state of Delaware and UD. Kathleen Splane, family and consumer science agent in CANR’s Cooperative Extension is one of the 2021 recipients.
  • Horticulture champion

    May 10, 2022 | Written by Michele Walfred
    Sue Barton’s role at the University of Delaware is the perfect embodiment of the University’s land-grant mission. She teaches. She conducts research. And she takes UD’s knowledge to the public.
  • Stop those Invasives!

    May 02, 2022 | Written by Sue Barton, Professor - Plant & Soil Sciences
    We are just past the peak of the Callery pear bloom now, our roadsides and abandoned fields having exploded into a sea of white blossoms. This may look “pretty”, but if you understand ecology and the impact these aggressive trees have on our ecosystem, you are more likely to feel anger than see attractiveness.
  • How I Teach - Agriculture

    April 26, 2022 | Written by Michele Walfred
    Agriculture is Delaware’s largest economic driver, bringing in nearly $8 billion a year to the First State. For University of Delaware students, there are lots of jobs to be had — two for every one graduate. Mark Isaacs realized that incoming UD students might not be aware of these bountiful opportunities.

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Delaware is a small state that is big in agriculture. We know our farmers give so much of themselves to keep the industry strong. We want you to know, there is help available. We want you to know, we’ve got your back.

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