Browse available resources.
You have questions. We have answers!
Contact UD Extension staff.
Read our latest accomplishments!
Find out how YOU can get involved!
Hands-on experiential learning for UD undergrads!
Submit a sample today.
Analyses to help manage your land.
Chat with a DE Master Gardener.
Protect your flock.
Find exciting job opportunities!

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 , Master Naturalist , Master Gardeners to 4-H youth clubs and programs that support local agriculture — UD Cooperative Extension has something for everyone!

Make a Difference

 

Getting involved with UD Cooperative Extension is an excellent way to support and improve your Delaware community. Whether you're volunteering as a 4-H Adult Leader or donating to supporting an Extension Scholar, your local Master Gardener program, UD Cooperative Extension is grateful to have your involvement!

AGENTS FOR CHANGE

See how University of Delaware agents and specialists are making a tangible impact throughout the First State and beyond. View the latest impact statements in both text and infographic formats.

Newsroom

Recent stories


Weekly Crop Update


  • WCU Volume 34, Issue 22 – August 7, 2026

    WCU Volume 34, Issue 22 – August 7, 2026 PDF of WCU Volume 34:22– August 7, 2026 WCU Subscription Options for 2026: Mail, Email, or Text Vegetable Crops Vegetable Crop Insect Scouting Agronomic Crops ...

    August 07, 2026 | 12:57 p.m.

  • August 21st Grain Marketing Breakfast

    Organized by New Castle County Farm Bureau and University of Delaware Cooperative Extension Location: Smyrna Diner 99 S Cory Ln, Smyrna, DE 19977 Breakfast will be provided. The event is provided free...

    August 07, 2026 | 12:41 p.m.

  • Weather Summary- August 7, 2026

    1 Week Accumulated Growing Degree Days 1 Month Accumulated Growing Degree Days 1 Week Accumulated Precipitation 1 Month Accumulated Precipitation

    August 07, 2026 | 12:41 p.m.

  • GUESS THE PEST! July 31st answer: Fall Armyworm

    Veronica Yurchak, Vegetable Specialist, UMD; vjohnso4@umd.edu Congratulations to Leah Fronk and others for correctly identifying this as fall armyworm damage in this sweet corn.

    August 07, 2026 | 12:33 p.m.

  • GUESS THE PEST! August 7th

    Veronica Yurchak, Vegetable Specialist, UMD; vjohnso4@umd.edu Submit your best guess here as to the identity of the disease affecting the pumpkins pictured below.

    August 07, 2026 | 12:32 p.m.

  • 2026 Small Grains Variety Trial Results Available

    Jarrod O. Miller, Extension Agronomist, jarrod@udel.edu The 2026 Delaware Small Grains Variety Trial results are complete and will be posted online soon. In the meantime, growers, consultants, and ind...

    August 07, 2026 | 12:07 p.m.

  • Stored Grain Insect Pests

    David Owens, Extension Entomologist, owensd@udel.edu I get asked about grain pests about once a year, just enough to keep them on my radar but not enough for me to be very familiar with products and r...

    August 07, 2026 | 12:03 p.m.

Read the full Weekly Crop Update

Programs & Events

Areas of impact

Join us on social media

Instagram icon@UDExtension on Instagram