TreeIssues

Santa Cruz Rain Beetle

MODERATE

Pleocoma conjungens

Overview

About 6 beetles out in the rain, flying and landing to take cover under the duff

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 Santa Cruz Rain Beetle. Always read and follow label directions, and confirm a diagnosis before treating.

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Frequently Asked Questions

What is Santa Cruz Rain Beetle?

About 6 beetles out in the rain, flying and landing to take cover under the duff

What are the symptoms of Santa Cruz Rain Beetle?

Where is Santa Cruz Rain Beetle currently found?

Santa Cruz Rain Beetle is currently active in California. It has been reported in 1 total state across the United States.

How do I treat Santa Cruz Rain Beetle?

Treatment options for Santa Cruz Rain Beetle 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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