Black Walnut Toxicity
Black walnut trees (Juglans nigra) produce a toxic substance (called juglone) that prevents many plants from growing under or near them.

Homeowner’s Guide to Emerald Ash Borer Insecticide
Several insecticide products are available to homeowners for control of Emerald Ash Borer, however, not all ash trees should be treated.

Is My Ash Tree Worth Saving
Tree location, value, and health, as well as the cost of treatment are all factors to consider when determining if the tree should be treated.

Leave the Leaves
If you have trees dropping leaves on your lawn grass, in many cases there is no need to incur blisters by raking them up. Leaves have nutrients, which can be recycled into your lawn.

Verticillium Wilt of Trees and Shrubs
Verticillium wilt is a typically fatal disease that affects a wide range of deciduous woody ornamentals in Wisconsin.  Trees most commonly and severely affected are maple and ash.


Photo left: Woodpecker damage on Ash tree.