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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.

COVID-19: facing thE challenge together

Together We Make the First State Great:

As the pandemic continues to rapidly evolve, our goal is to assist you in protecting the health and safety of your families, friends and community. 


Trending issues

  • Woman applying pesticides to her fruit tree while following safety guidelines with gloves and a long sleeved shirt.

    What you need to know before treating a pest

    April 21, 2021 | Written by David Owens, Extension Specialist - Agricultural Entomology
    Pesticides are incredibly powerful, convenient tools to prevent pests or remediate pest populations, but only if they are used carefully and responsibly.
  • A green santuary

    April 21, 2021 | Written by Ann Manser
    Plans call for College of Agriculture and Natural Resources students to be involved in helping to design a proposed community center and outdoor recreation area.
  • Parts of the Area Prepare for Cicada Invasion

    April 19, 2021 | Written by Tim Furlong from NBC10
    A huge influx of cicadas is expected to soon emerge from the ground. NBC10’s Tim Furlong talks with Brian Kunkel from UD Cooperative Extension to show you what you might see – and hear – when they arrive in parts of our area.
  • Delaware Master Gardener program now accepting fall applications!

    April 16, 2021 | Written by Carrie Murphy, Extension Educator — Horticulture
    Master Gardeners are vital links in an educational chain that begins with research from the University of Delaware, Delaware State University and the horticulture industry.
  • Celebrate a Virtual Ag Day 2021

    April 16, 2021 | Written by Christy Mannering
    The 2021 Ag Day theme is "One World, One Health" and will highlight college-wide research pertaining to this concept. One Health is a research perspective that considers the health of animals, humans and the environment as a single, integrated whole.
Cover art for Extension302 podcast featuring an ear of corn as a podcast microphone

A podcast just for you!

Scientifically-based conversation on local topics ranging from agricultural sciences to nutrition, mindfulness, financial literacy and more! Available wherever you get your podcasts!





Each year, impact statements summarize the accomplishments of our educational efforts! The latest impact statements are available in both text and infographic formats. 



Eight "got your back" supporters stand together.

We've got your back!

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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