Woody Ornamental Integrated Pest Management at Penn State
HOME: Woody Ornamental Integrated Pest Management
FACT SHEETS: Identification and management of insects and diseases on landscape plants
PEST ACTIVITY: Weekly reports on insect and disease activity in Southwestern Pennsylvania
PEST DIAGNOSIS: Images of major insect and disease pests of landscape plants
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SERVICES: Soil testing, insect and disease identification
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Oak Pest Diagnosis

Pest Diagnosis > Oak

1. What part of the plant is damaged by pests?
Choose --> Leaves | Bark or Stems


Leaves

2. Which photo matches the damage on my plant? (For additional photos and facts, click on the fact sheet for each pest .)

 

Bagworm

Fact Sheet

A young bagworm larva feeding on a pin oak leaf
A young bagworm larva feeding on a pin oak leaf

Yes, this is the pest.

 

 

Cynipid Gall Wasps

Fact Sheet

Small round galls formed by the feeding by cynipid gall wasps on white oak Oak hedgehog gall caused by a small cynipid wasp
Small round galls formed by the feeding by cynipid gall wasps on white oak Oak hedgehog gall caused by a small cynipid wasp

Yes, this is the pest.

 

Gouty Oak Galls

Fact Sheet

Gouty oak galls formed a wasp on a shingle oak, Quercus imbricaria
Gouty oak galls formed a wasp on a shingle oak, Quercus imbricaria

Yes, this is the pest.

 

Hickory Tussock Moth

Fact Sheet

Hickory tussock moth larvae devouring an oak leaf
Hickory tussock moth larvae devouring an oak leaf

Yes, this is the pest.

 

 

Oak Lace Bug

Fact Sheet

Oak lace bug damage on white oak
Oak lace bug damage on white oak

Yes, this is the pest.

 

Oak Midge

Fact Sheet

Feeding injury on red oak from the fly Agromyza viridula
Feeding injury on red oak from the fly Agromyza viridula

Yes, this is the pest.

 


Oak Obscure Scale

Fact Sheet

The light grey area on the bark is a severe infestation of obscure scale on pin oak
The light grey area on the bark is a severe infestation of obscure scale on pin oak

Yes, this is the pest.

 

Oak Spider Mite

Fact Sheet

Feeding injury from the oak spider mite
Feeding injury from the oak spider mite

Yes, this is the pest.

 

Orange-Striped Oakworm

Fact Sheet

Orange striped oakworm larvae on oak

Yes, this is the pest.

 

Scarlet Oak Sawfly

Fact Sheet

Scarlet oak sawfly feeding on red oak foliage
Scarlet oak sawfly feeding on red oak foliage

Yes, this is the pest.

 

Bark or Stems

No images available yet.


3. Look for the name of the pest under the Control Measures for this plant.

 

 

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