The Walnut Council is a science based organization that encourages research, discussion, and application of knowledge about growing hardwood trees. This international association represents nearly 900 woodland owners, foresters, forest scientists, and wood-producing industry representatives. We promote sustainable forest management, conservation, reforestation, and utilization of American black walnut (Juglans nigra) and other fine hardwoods.

Member Profile

Larry Krotz

Member since 1992
235 acres: E Iowa
2011 Black Walnut Achievement Award

Latest News

Thousand Cankers Disease announced in Indiana

A June 19, 2014 press release announced Thousand Cankers disease in Indiana. After the announcement, Walnut Council co-sponsored a conference call to learn more about the find and what it means for Indiana landowners. Here is a transcript of the call featuring Phil Marshall, Indiana State Entomologist, and Dr. Matthew Ginzel, Associate Professor of Entomology at Purdue University. For more information see the Indiana TCD page, or the Indiana DNR TCD website.

Crop Tree Management for Fine Hardwoods

Crop tree management (CTM) is a relatively simple and easy to use tree management system well-suited to small woodland ownerships. By Lenny Farlee, Extension forester, Hardwood Tree Improvement & Regeneration Center. Reprinted from the December 2013 issue of the bulletin. See the full article here.

Thousand Cankers Disease announced in Ohio

Although walnut twig beetles were detected in southwestern Ohio in late 2012, thousand cankers disease was not confirmed until August 2013. See the Ohio news release.

TCD Webinars available for viewing online

A series of three webinars were produced this spring and are now available for viewing online. This seminar series was for landowners, extension educators, and natural resource professionals. To view them, go to TCD online webinar recordings.

Join our campaign to limit the movement of walnut material

We are asking our members to contact online websites which sell walnut and request they prohibit the sale of bark-on walnut material. Click here for contact information and a sample letter...

North Carolina detects thousand cankers disease in the Great Smoky Mountains National Park

See the details about the quarantine.

Virginia expands TCD Quarantine to include 2 more counties

See the details about the quarantine.

Website developed as resource for info on Thousand Cankers disease

This national TCD website, co-sponsored by Walnut Council, provides the latest information on quarantines, research, and information for landowners and scientists. More...

National TCD meeting held in West Lafayette

See documents and recordings from the meeting, which was co-sponsored by Walnut Council. More...

Agriculture Department Announces Detection of Thousand Cankers Disease in Pennsylvania Trees, Enacts Quarantine to Prevent Spread

On Aug. 9, 2011, the department in cooperation with the U.S. Department of Agriculture and Penn State Cooperative Extension confirmed the presence of Thousand Cankers Disease in black walnut trees in Bucks County. More...


The Virginia Department of Agriculture and Consumer Services (VDACS) today placed a temporary quarantine on Chesterfield and Henrico Counties and the city of Richmond following the detection of Thousand Cankers Disease (TCD) in Chesterfield and Henrico Counties. The city of Richmond is included because of its proximity to the locations where the disease was detected. More...

American Chestnut Trees Return to the Hoosier National Forest

Once a prominent forest tree in southern Indiana, potentially blight resistant American chestnut trees have now been re-planted on the Hoosier. The first of two areas have been planted with blight-resistant American chestnut trees on the Hoosier National Forest. More...

Forest Service Report on Sustainable Forests Offers Support for All-Lands Approach to Resource Management

The United States has 751 million acres of forests that have remained remarkably stable during the past 50 years, according to the U.S. Forest Service's 2010 National Report on Sustainable Forests that was released today. More...

U.S. Forest Service, Partners, to Premiere New Documentary on Aldo Leopold's Legacy

The U.S. Forest Service has partnered with the Aldo Leopold Foundation and the Center for Humans and Nature in the first feature-length, high-definition documentary about the legendary conservationist Aldo Leopold. The film "Green Fire: Aldo Leopold and a Land Ethic for Our Time" will premiere on Saturday, Feb. 5, at the National Hispanic Cultural Center in Albuquerque, N.M. More...

Thousand Cankers Disease Hits Eastern TN

A disease-causing fungus that kills black walnut trees has been confirmed in East Tennessee. Knoxville News-Sentinel, August 6, 2010

Annual Meeting

July 29- August 1, 2018
Dubuque, Iowa (with tours in WI)
Chairs: Manfred Mielke and Cindy Heisdorffer

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Thousand Cankers Disease

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