Burrowing caused by the Emerald Ash Borer.

There are many invasive pest species that are doing harm to native Ohio trees.  Often outbreaks cause catastrophic damage to trees resulting in death.  Denison, and the Village of Granville, recognize that being proactive and engaging the community in the fight against these pests is the most effective way to control and prevent large scale tree mortality.

 Please take a moment to inform yourself about these invasive species and help us to identify areas in our community where or trees may be in trouble.

• Asian Longhorned Beetle
• Emerald Ash Borer
• Gypsy Moth
• Hemlock Borer
• Sudden Oak Death
• Sirococcus tsugae Tip Blight on Eastern Hemlocks
• Forest Tent Caterpillar