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Managing Spotted Lanternflies
 

This destructive, invasive insect poses a threat to Delaware's agricultural economy. 

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

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

Newsroom

Trending Stories


  • A view of the Ferris wheel at the Delaware State Fair

    ‘Kick up some fun’ with UD at the fair

    July 17, 2025 | Article by Katie Peikes , Photos by Jackie Czachorowski
    his year will be Klaira Wing’s first year participating in a competition at the Delaware State Fair. She’s ready to “kick up some fun,” the theme of this year’s event. “I’m excited to see my friends,” said the 6-year-old Cloverbud, a pre-4-Her from Seaford, Delaware. “I’ve been working on crafts, sewing, drawing and singing.”
  • Yes, Turfgass Cultivar Selection Matters!

    July 15, 2025 | Written by: John Emerson, Turfgrass Nutrient Management Agent, Amy Shober, Nutrient Management and Environmental Quality Specialist and Erik Ervin, Turfgrass and Horticultural Systems
    There are several items to consider when establishing or renovating a lawn. Of course, water, light, soil nutrient levels, and temperature are essential, but one could easily argue that cultivar (cultivated variety) selection may be the most critical step in the long-term success and persistence of a lawn. Proper cultivar selection ensures that a particular turfgrass is best adapted to local conditions and will meet the turfgrass manager's use and maintenance expectations. Newer improved cultivars will establish quicker and form a denser turf to outcompete weeds. They require less supplemental irrigation, demand fewer fertilizer and pesticide applications, and maintain a more uniform turf stand throughout the growing season. These advantages ultimately translate into a significant reduction of inputs while still maintaining an excellent stand of turf.
  • Peep into learning

    June 25, 2025 | Written by Michele Walfred
    Delaware’s 4-H Embryology Program brings baby chicks all across Delaware classrooms, libraries, afterschool programs and other locations as part of an emphasis on STEM (science, technology, engineering and math). The program has delighted thousands of students for years, imprinting upon young minds a memorable experience of nature and science. The impact is powerful, reaching 42,000 participants in the past five years.
  • Lose the lawn, for Earth’s sake

    June 20, 2025 | Written By Kathleen M. Doyle Kent County Master Gardener
    Lawns are the most irrigated “crop” in the U.S, covering approximately 40 million acres of land — twice as much as our national parks. They provide no nourishment to any species (except Japanese beetles), and they degrade the soil and watershed due to their shallow roots and the chemicals property owners use to kill weeds and insects and to maintain the color. While patches of lawn are useful for children and pets, most homeowners blanket their property with turf. The impact of this monoculture of lawn devastates the environment.

Programs & Events

Areas of impact

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