Some companies claim to sell black walnut tree clones developed at Purdue University; however, Purdue University no longer holds patent rights to these trees and cannot endorse the claims made for the ...

Evaluation of long-term investments in black walnut plantations. depends on tree growth rates, log quality, and costs incurred, as well as the expected price for logs when the trees are big enough to ...

Landscaping under any tree can be challenging, thanks to the dense shade cast by the branches and the abundance of thick roots in the soil. But black walnut trees (Juglans nigra) seem to be in a ...