Insect & Disease
Resource Center

Signs of pests and diseases will vary from tree to tree. Search our database of pests and diseases for symptoms, damages, life cycle, management, and control information.

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Damage & Symptoms
Pest And Disease Center Winter Moth Banner 1440X500
Leaf or Needle Discoloration
Winter Moth
The male fringe-winged winter moth is often seen in homes and around lights and holiday decorations in December and January. This invasive pest arrived in the U.S. and Canada from Europe.
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Fotolia 85089638 IPS Beetle M
Leaf or Needle Discoloration
Ips Pine Bark Beetles
All stressed pine and spruce trees are vulnerable attack. Healthy trees are rarely attacked, although where Ips populations are extremely high, healthy trees may be overwhelmed by large numbers of beetles.
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Ss 456412858 Chlorosis On Cherry Tree
Wilted or Curled Leaves
Pest Management | Stress Reduction
There are many abiotic and biotic stressors that can negatively impact tree health. Common stressors can include: air pollution, drought, flooding, improper planting and mechanical injury.
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Adobestock 316184773 Split Gill Fungus Close Up
Mold or Fungus
Split Gill Fungus
Split gill fungus can be found in almost every corner of the world. The fruiting bodies look like small saucers or fans and can be found on living or dead trees.
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