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.

  • Home
  • Insect & Disease Resource Center
Search All Articles
{{appliedFilter.terms}}
Filters
Damage & Symptoms
Pest And Disease Brittle Cinder Fungus Banner 1440X500
Trunk or Bark Damage
Brittle Cinder Fungus
Brittle cinder fungus, or Kretzschmaria deusta, is a fungal pathogen that causes breakage in seemingly healthy trees. The fungus appears around the base of trees as a crust-like fruiting body that has wavy edges.
Read More
Pest And Disease Slime Flux Banner 1440X500
Substance on Leaf or Oozing
Bacterial Wetwood & Slime Flux
Bacterial wetwood is a bacterial infection that causes a profuse flow (flux) of sap from trunk wounds or pruning cuts.
Read More
5504861 LGPT Cedar Needle Blight
Mold or Fungus
Cedar Leaf Blight
Cedar leaf blight is a fungal disease affects western red cedar (Thuja plicata). Severely infected leaves drop in fall.
Read More
Pest And Disease Center Euonymus Scale Banner 1440X500
Leaf or Needle Discoloration
Euonymus Scale
Read More
Fusarium Len Burkhart AD Lt
Wilted or Curled Leaves
Fusarium Wilt Of Palms
Fusarium wilt of palms is caused by a fungus that blocks the vascular tissue (xylem), which transports water and nutrients. There is no cure, so infected trees eventually die.
Read More
Pest And Disease Center Japanese Beetle Control On Woody Banner 1440X500
Holes or Skeletonization in Leaves
Japanese Beetle Control On Woody Ornamentals
Japanese beetles are pests in the U.S. found primarily east of the Mississippi, but are rapidly spreading westward. Adults are 3/8”-1/2” long with metallic green bodies and copper/bronze wings.
Read More
Pest And Disease Center Oak Wilt Banner 1440X500
Mold or Fungus
Oak Wilt Disease
Oak wilt is a vascular disease caused by a fungus that spreads locally from infected trees to nearby healthy trees. Primarily transmitted through root grafts, it causes sudden wilting, early leaf drop, discolored leaves, and sometimes, vascular streaking in the sapwood.
Read More
Pest And Disease Center Seiridium Canker Of Leyland Cypress Banner 1440X500
Mold or Fungus
Seiridium Canker Of Leyland Cypress
Seiridium canker of leyland cypress is a fungal disease that produces oozing brown cankers and causes yellowing and browning of tree branches.
Read More
{{post.firstCategory}}
{{post.headline}}
{{post.postDate}}
{{post.summary}}
{{post.readMoreText}}
No Results

No results were found matching that query.

DSC 8019
DSC 8019

Get In Touch With Us!

We pride ourselves at Davey Tree on providing prompt, professional and personalized service from certified arborists that live, work and engage in your community. Contact one of our Davey Tree specialists for your residential needs.

Find A Local Office
Let's Find What
You're Looking For!
Quick Links