Pick up know-how for tackling diseases, pests and weeds.
Farm bill, farm marketing, agribusiness webinars, & farm policy.
Find tactics for healthy livestock and sound forages.
Scheduling and methods of irrigation.
Explore our Extension locations around the state.
Commercial row crop production in Arkansas.
Agriculture weed management resources.
Use virtual and real tools to improve critical calculations for farms and ranches.
Learn to ID forages and more.
Explore our research locations around the state.
Get the latest research results from our county agents.
Our programs include aquaculture, diagnostics, and energy conservation.
Keep our food, fiber and fuel supplies safe from disaster.
Private, Commercial & Non-commercial training and education.
Specialty crops including turfgrass, vegetables, fruits, and ornamentals.
Find educational resources and get youth engaged in agriculture.
Gaining garden smarts and sharing skills.
Timely tips for the Arkansas home gardener.
Creating beauty in and around the home.
Maintenance calendar, and best practices.
Coaxing the best produce from asparagus to zucchini.
What’s wrong with my plants? The clinic can help.
Featured trees, vines, shrubs and flowers.
Ask our experts plant, animal, or insect questions.
Enjoying the sweet fruits of your labor.
Herbs, native plants, & reference desk QA.
Growing together from youth to maturity.
Crapemyrtles, hydrangeas, hort glossary, and weed ID databases.
Get beekeeping, honey production, and class information.
Grow a pollinator-friendly garden.
Schedule these timely events on your gardening calendar.
Equipping individuals to lead organizations, communities, and regions.
Home to the Center for Rural Resilience and Workforce Development.
Guiding entrepreneurs from concept to profit.
Position your business to compete for government contracts.
Find trends, opportunities and impacts.
Providing unbiased information to enable educated votes on critical issues.
Increase your knowledge of public issues & get involved.
Research-based connection to government and policy issues.
Support Arkansas local food initiatives.
Read about our efforts.
Preparing for and recovering from disasters.
Licensing for forestry and wildlife professionals.
Preserving water quality and quantity.
Cleaner air for healthier living.
Firewood & bioenergy resources.
Managing a complex forest ecosystem.
Read about nature across Arkansas and the U.S.
Learn to manage wildlife on your land.
Soil quality and its use here in Arkansas.
Learn to ID unwanted plant and animal visitors.
Timely updates from our specialists.
Eating right and staying healthy.
Ensuring safe meals.
Take charge of your well-being.
Cooking with Arkansas foods.
Making the most of your money.
Making sound choices for families and ourselves.
Nurturing our future.
Get tips for food, fitness, finance, and more!
Understanding aging and its effects.
Giving back to the community.
Managing safely when disaster strikes.
Listen to our latest episode!
Thousand-cankers disease (Geosmithia morbida Kolařík, Freeland, Utley, and Tisserat (Ascomycota: Hypocreales)) is a fungal pathogen
affecting most of the North American species of walnuts (Juglans L.). Some walnuts are moderately susceptible, but others such as black walnut (Juglans nigra L.) are highly susceptible. Thousand-cankers disease is unique among invasive pests
in being, in a sense, a home-grown invasive pest. It is native to western North America.
The fungus that causes thousand-cankers disease was first identified and reported
in 2010. Based on descriptions of symptoms, it is suspected of killing walnut trees
as far back as the early 1990′s. To date, the disease has not been found in Arkansas;
but both black walnut and butternut (Juglans cinerea L.) are native to Arkansas.
Image courtesy of Curtis Utley, CSUE, Bugwood.org
Image courtesy of Whitney Cranshaw, Colorado State University, Bugwood.org
Learn to prevent the spread of thousand-cankers disease
Image courtesy of www.thousandcankers.com
Find the locations of thousand-cankers disease infestations
Circular 11, Regulations on Plant Diseases and Pests (Arkansas - skip to page 54 for
Diagnosing Thousand Cankers Disease of Walnut
Emergency Quarantine of Thousand Cankers Disease
Pathway Assessment: Geosmithia sp. and Pityophthorus juglandis Blackman movement
from the western into the eastern United States
PEST ALERT - Walnut Twig Beetle and Thousand Cankers Disease of Black Walnut
Pest Alert: Thousand Cankers Disease
Questions and Answers about Thousand Cankers Disease of Walnut
The Indiana Quarantine for Thousand Cankers Disease (TCD) of Black Walnut Trees
Thousand Cankers Disease & the Walnut Twig Beetle
Thousand Cankers Disease of Walnut (Geosmithia morbida)
Walnut Thousand Cankers Disease Alert
Walnut Twig Beetle and Thousand Cankers Disease: Field Identification Guide
The Dangers of Thousand Cankers Disease
Walnut twig beetle (Pityophthorous juglandis): The Documentary
Exotic and Invasive Pests: Thousand Cankers Disease and the Walnut Twig Beetle in
Missouri Agriculture: Thousand Cankers Disease of Black Walnut
Thousand Cankers Disease
Thousand Cankers Disease / Walnut Twig Beetle
Thousand Cankers Disease: A Red Alert for Walnut