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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 , 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 21 July 31, 2026

    WCU Volume 34, Issue 21- July 31, 2026 PDF of WCU Volume 34:21- July 31, 2026 WCU Subscription Options for 2026: Mail, Email, or Text Vegetable Crops Vegetable Crop Insect Scouting Agronomic Crops Agr...

    July 31, 2026 | 11:07 a.m.

  • Weather Summary- July 31, 2026

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

    July 31, 2026 | 11:04 a.m.

  • 2026 Fall Category 03 Pesticide Pre-Exam Training

    Multiple Dates 9:00AM- 3:00PM University of Delaware Kent County Extension Office: Paradee Center 69 Transportation Cir, Dover, DE 19901 The Delaware Department of Agriculture in conjunction with Univ...

    July 31, 2026 | 10:59 a.m.

  • Guess The Pest! July 24th Answer: Spider Mites!

    Veronica Yurchak, Vegetable Specialist, UMD; vjohnso4@umd.edu Congratulations to Joe Streett, Chris Burkhart, and others for correctly identifying this as spider mite damage in sweet corn and eggplant...

    July 31, 2026 | 10:53 a.m.

  • Guess The Pest! July 31st

    Veronica Yurchak, Vegetable Specialist, UMD; vjohnso4@umd.edu Submit your best guess here or click the GTP logo as to the identity of the pest responsible for the damage pictured in the images below.

    July 31, 2026 | 10:51 a.m.

  • Farm Aid Passes Through House of Representatives

    Nate Bruce, Farm Business Management Specialist, nsbruce@udel.edu & Brock O’Day (Extension Scholar- Farm Business Management) The U.S. House of Representatives recently approved a budget resolutio...

    July 31, 2026 | 10:48 a.m.

  • Agronomic Crop Insect Scouting

    David Owens, Extension Entomologist, owensd@udel.edu Spider Mites Spider mite populations are receding quickly. The focus in soybean now shifts to protecting pods from stink bugs. Our thresholds are 2...

    July 31, 2026 | 10:44 a.m.

Read the full Weekly Crop Update

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