Black walnut trees produce a chemical called juglone ... the roots and is also found in smaller concentrations in the leaves, bark, wood, and nut hulls. While other types of trees also produce ...

Wet, clay ground and thriving. Late last summer, I noticed the leaves were dead suddenly, and the bark on the trunk was completely loose and falling off. No other trees or shrubs within 50 feet (black ...

we will identify some of these tree species and describe some of their unique characteristics. Our second species is the Butternut (Juglans cinerea), known also by lemon-nut, oilnut, or white walnut.