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.
Recent stories
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Dedicated to Delaware: Master Gardeners and Cooperative Extension celebrate 40 years
November 11, 2026 | Written by Michele Walfred | Photos by Michele WalfredIn October, Master Gardener Volunteer Educators from across the state gathered at the Delaware Agriculture Museum in Dover to celebrate a unique program and collaboration that has endured for 40 years. -
Leading through service: Mireille Chahine joins UD Cooperative Extension
October 08, 2026 | Written by Dante LaPenta | Photos by Michele WalfredMireille Chahine is the newly minted associate dean and director of UD Cooperative Extension. A long-time Cooperative Extension veteran of the University of Idaho, Chahine was drawn to the First State because of the prominence of agriculture. -
De-Stress Your Holidays: Put Protective Factors in Place Now
October 05, 2026 | Written by: Jennifer Seabrook-Scott, Health & Well-Being Extension AgentIt’s coming up on that time of year again: forced social interactions, loneliness and/or grief, and financial strain. To counter these holiday stressors, we can build protective factors now. Protective factors are conditions, attributes, or resources that help people deal more effectively with stressful life events. They act as a psychological shield; while they don't eliminate life challenges, they reduce negative impacts and prevent deeper harm. -
UD Carvel Center’s expanded field and crop tours provide key outreach to Delaware agriculture
September 30, 2026 | Article and photos by Michele Walfred. Video by Cassandra DaleyEvery August, University of Delaware Cooperative Extension experts at the Elbert N. and Ann V. Carvel Research and Education Center in Georgetown open up their 347-acre campus and invite agriculture stakeholders to view first hand the latest research in both fruit and vegetable and agronomic crops. A decades-long tradition, the summer event attracts local farmers, farm-related businesses and vendors, certified crop advisors and anyone with a vested interest in Delaware’s largest economic sector — agriculture.
Weekly Crop Update
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Volume 16 – 2008 Archive
Volume 16, Issue 1 – February 29, 2008
November 13, 2026 | 04:29 p.m.
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WCU Volume 16, Issue 1- February 29, 2008
WCU Volume 16, Issue 1 Wheat Pests Management of Hessian Fly in The Spring Management of Aphids: Barley Yellow Dwarf Transmission and Direct Aphid Damage in the Spring Winter Grain Mites Cereal Leaf ...
November 13, 2026 | 04:23 p.m.
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Will Spring Wheat Work in Delaware? Not Very Well
–Gordon Johnson, Extension Ag Agent, Kent Co.; gcjohn@udel.edu I have had several questions on the potential for planting spring wheat in Delaware. With the high wheat prices, the thought is to take a...
November 13, 2026 | 04:20 p.m.
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Understanding the Falling Number Wheat Quality Test
Carl German, Extension Crops Marketing Specialist; clgerman@udel.edu Introduction Protein and moisture are key quality tests for both grade and marketing price of wheat. Farmers are most familiar with...
November 13, 2026 | 04:18 p.m.
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New Confusion Formulations for Small Grain Herbicides
Mark VanGessel, Extension Weed Specialist; mjv@udel.edu Remember the good old days when someone said they used “Harmony” on their wheat and you knew exactly what they meant. Then came Harmony Extra, H...
November 13, 2026 | 04:16 p.m.
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Precautions for Herbicide Use with Nitrogen Applications to Small Grains
Mark VanGessel, Extension Weed Specialist; mjv@udel.edu It is common to add herbicides when “top-dressing” nitrogen to small grains. These precautions are from manufacturers’ labels: Harmony Extra or ...
November 13, 2026 | 04:13 p.m.
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Small Grain Weed Control
If you did treat your fields in the fall for weed control, is time to be scouting the crop. Weed control is important to achieve maximum wheat yields. There are a number of good herbicides for small g...
November 13, 2026 | 04:12 p.m.
Additional information
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Areas of impact
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