Black walnut trees produce a chemical called juglone as ... Plants within the dripline or the edge of the canopy will be most susceptible to juglone. However, the toxic zone around a mature ...

The canopy is round in shape and expansive, spreading about 50 to 75 feet wide. As deciduous trees, they lose their leaves in wintertime. When in leaf, however, black walnut trees can easily be ...

A team of trained arborists led by Doug Steel of Full Circle Tree Care will be climbing up high to help this tree on Saturday ...