Browse available resources.
Submit a sample today.
Analyses to help manage your land.
Chat with a DE Master Gardener.
You have questions. We have answers!
Contact UD Extension staff.

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!



Photo of a preserved Spotted Lanternfly

Find out what they are, how to control them, and what a local quarantine means for you.

Trending issues

  • 4-Hers work together on a computer challenge

    A Galactic Quest for 4-Hers!

    October 11, 2021 | Written by Jenny Trunfio, 4-H Youth Development Program Coordinator
    Since 2008, National 4-H Council has released a challenge kit for youth to learn and develop a passion for STEM topics through fun, engaging, hands-on activities. The 2021 STEM Challenge is Galactic Quest.
  • A garden transformed

    October 08, 2021 | Written by Michele Walfred and Gaye Mara
    In late September, the public returned for the 2021 edition of A Day in the Garden. The only evidence of landscape trauma were pictures on display. The long absence became a positive, teachable moment as the team used a variety of techniques to combat the weeds.
  • The Art of Composting

    September 27, 2021 | Written by Gail Hermenau
    Composting is both an art and a science, especially when it comes to backyard composting.
  • Building Future Leaders in 4-H Afterschool

    September 20, 2021 | Written by D’Aesha Fletcher, Frank Ferlenda and Ray Taylor, Delaware 4-H
    Across Delaware, 4-H Afterschool programs have been shown to positively influence school attendance, academic performance, motivation, behavior and overall, encourage students to do well in school and beyond.
  • Spotted Lanternfly Management for Delaware Homeowners

    September 15, 2021 | Written by Katie Young and Brian Kunkel
    If you live in northern Delaware, you have, by now, seen a new insect hopping and flying about — the spotted lanternfly. Although vibrant and beautiful, these little critters are causing mayhem for homeowners and farmers alike. Here’s what you can do.
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!

2018-06-13 | CANR_UD-Farm_Fresh-To-You_Eggplant_Bill-Cissel_Extension-Scholars_Argentina-Exchange-Student

Become a UD
Extension Scholar!

A unique, hands-on 10-week summer experiential learning experience for UD students, offered under the guidance of Extension agents or specialists.



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.


eXtension logo