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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
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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Pest And Disease Leafminer Banner 1440X500
Leaf or Needle Discoloration
Arborvitae Leafminer
Arborvitae or cedar leafminers are larvae of small, silver and tan moths. The larvae are small, brownish-black caterpillars that burrow into the leaves of plants.
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Pest And Disease Bagworms Banner 1440X500
Leaf or Needle Dropping
Bagworms
Bagworms are destructive pests of shrubs and woody ornamentals that are native to North America. Their spindle-shaped protective bags made from silk, debris and foliage provide camouflage, so they go unnoticed until there is significant plant damage.
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