Indiana News

New germplasm conservation orchard (GCO) in Clinton county

This orchard was established three years ago to preserve the genetic material of the Indiana American chestnuts at the Duke orchard at Purdue. The Duke trees were all cloned from old existing chestnuts from all over Indiana. Unfortunately, the Duke chestnuts have all become severely blighted, and we are in danger of loosing this valuable genetic material which we would like to use to breed blight resistant trees in the future. We were partially successful in treating the Duke trees with fungicide but we feel that the safest strategy is to reproduce the entire Duke orchard in a separate location far enough away that the seedlings could avoid blight for several years. This is why the new chestnut orchard was planted on farm land in Clinton county, Indiana.

Unfortunately, we have found blight on a few of the new trees. On October 6, 2022 chapter president Glenn Kotnik revisited this orchard and found the blight is now well controlled after a single fungicide application. Most of the trees look healthy, are growing well, and are showing their fall colors.

Indiana News Chapter Menu

National Facebook

Comments Box SVG iconsUsed for the like, share, comment, and reaction icons

There’s nothing quite like the first signs of life in the nursery; our chestnut seedlings are officially emerging! After weeks of careful stratification, planting, and patience, we’re starting to see those first tender shoots break through the soil. Early seedling emergence is a critical stage, showing us that germination was successful and that strong root systems are beginning to establish beneath the surface. These seedlings will be used for our Recurrent Genomic Selection program, including future seed orchards, progeny tests, small stem assays, phytophthora root rot screening. Here’s to healthy growth, strong roots, and a thriving season ahead! #AmericanChestnut #RestorationInProgress #ChestnutResearch #ForestRestoration #MeadowviewResearchFarms #ConservationScience ... See MoreSee Less

Grafting is one of the tools we use to conserve large, surviving American chestnut germplasm and ensure it isn’t lost. By grafting scion from important trees onto compatible rootstock, we can preserve valuable genetics and share this germplasm across regions. This work allows exceptional trees to live on in multiple locations, supporting research, restoration, and collaboration while safeguarding the diversity of the American chestnut for the future.

#AmericanChestnut #RestorationInProgress #ChestnutResearch #ForestRestoration #MeadowviewResearchFarms #ConservationScience
... See MoreSee Less

Our Director of Science, Jared Westbrook, was interviewed by Ira Flatow, founder and host of Science Friday, for their podcast. The episode is now available: www.sciencefriday.com/segments/restoring-american-chestnut-tree/

On Science Friday, Jared discusses the multiple approaches taken to improve blight resistance in American chestnut trees, TACF’s recurrent genomic selection program as our main engine for restoration, and what successful restoration looks like.

#americanchestnut #sciencefriday #science #restoration #explorepage #conservation
... See MoreSee Less

Black History Month provides an important opportunity to honor the past while also recognizing how Black knowledge, leadership, and community continue to shape the present. From histories rooted in land and survival to modern platforms and outdoor spaces where connection and representation matter.

Today we’re highlighting Hattie Carthan, who fought against the impacts of redlining and disinvestment by mobilizing her Bed‑Stuy community to restore its trees and protect a landmark magnolia. Her legacy shows that restoration starts with us, an idea at the heart of our work to revive the American chestnut.

Read more about Hattie Carthan: tacf.org/black-history-and-the-american-chestnut/

#blackhistorymonth #americanchestnut #treestagram #explorepage #nature
... See MoreSee Less

Black History Month provides an important opportunity to honor the past while also recognizing how Black knowledge, leadership, and community continue to shape the present. From histories rooted in land and survival to modern platforms and outdoor spaces where connection and representation matter.Today we’re highlighting Hattie Carthan, who fought against the impacts of redlining and disinvestment by mobilizing her Bed‑Stuy community to restore its trees and protect a landmark magnolia. Her legacy shows that restoration starts with us, an idea at the heart of our work to revive the American chestnut. Read more about Hattie Carthan: https://tacf.org/black-history-and-the-american-chestnut/ #blackhistorymonth #americanchestnut #treestagram #explorepage #natureImage attachmentImage attachment

1 CommentComment on Facebook

So trees DO grow in Brooklyn again?!

Our air pruning bed was constructed in early 2025 and has since been growing hybrid chestnuts that play an important role in our grafting work. Air pruning beds allow us to grow strong, well-branched root systems and make it easy to access high-quality rootstock for grafting. MRF staff are currently grafting using the root stock from trees that were grown in this air pruning bed, so stay tuned to learn more about it next week!

#americanchestnut #restorationinprogress #chestnutresearch #forestrestoration #meadowviewresearchfarms #conservationscience
... See MoreSee Less

Our air pruning bed was constructed in early 2025 and has since been growing hybrid chestnuts that play an important role in our grafting work. Air pruning beds allow us to grow strong, well-branched root systems and make it easy to access high-quality rootstock for grafting. MRF staff are currently grafting using the root stock from trees that were grown in this air pruning bed, so stay tuned to learn more about it next week!  #AmericanChestnut #RestorationInProgress #ChestnutResearch #ForestRestoration #MeadowviewResearchFarms #ConservationScience
Load more