TreeIssues

Woody Underwing

MODERATE

Catocala grynea

Overview

Woody Underwing observed in the wild. Research-grade iNaturalist observation.

Type
Insect
Severity
MODERATE
Source
iNaturalist

Symptoms

Geographic Spread

Treatments

Targeted Insecticide Application

Chemical TreatmentEffectiveness: HIGH

Apply appropriate insecticide following label directions. Timing is critical — treat during the vulnerable larval or adult emergence stage for maximum effectiveness.

Biological Control Agents

Biological ControlEffectiveness: MODERATE

Introduce or encourage natural predators and parasitoids. Options include releasing predatory beetles, parasitic wasps, or applying Bt (Bacillus thuringiensis) for caterpillar pests.

Infested Material Removal

Mechanical RemovalEffectiveness: MODERATE

Prune and destroy infested branches and plant material. Remove fallen debris that may harbor eggs or larvae. Dispose of material away from healthy trees.

Recommended Products & Tools

Helpful supplies for managing Woody Underwing. Always read and follow label directions, and confirm a diagnosis before treating.

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Frequently Asked Questions

What is Woody Underwing?

Woody Underwing observed in the wild. Research-grade iNaturalist observation.

What are the symptoms of Woody Underwing?

Where is Woody Underwing currently found?

Woody Underwing is currently active in Connecticut, New York. It has been reported in 2 total states across the United States.

How do I treat Woody Underwing?

Treatment options for Woody Underwing include: Targeted Insecticide Application, Biological Control Agents, Infested Material Removal. Treatment approaches may include chemical, biological, cultural, and mechanical methods depending on the severity and context.

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