Museum Pests and Integrated Pest Management

Museum Pests

Definition: Organisms that damage or destroy museum structures and collections, including microorganisms, insects, rodents, birds, and vertebrates.
Impact: Pest infestations weaken building structures and irreversibly damage objects.

Description: A multifaceted pest control program focusing on ecological methods with minimal ecosystem disturbance.
Goals: Long-term reduction of biodeterioration through a safe, holistic, and cost-effective approach.
Components:
- Habitat modification
- Biological and physical controls
- Written IPM plan site-specific for cultural and historical needs
Pest Control: Reduce pesticide use; use chemical controls as last resort.

Processes: Actions by living organisms that worsen physical or chemical conditions of collections.
Organisms: Includes various microorganisms like molds, algae, and bacteria, which can damage organic and inorganic museum materials.
Effects of Molds: Grow in high humidity (>65%), low light, and poor ventilation; can cause allergies and pathogens.

Microorganisms:
- Include fungi, algae, yeasts, and bacteria.
- Mold can damage textiles, leather, and paper, characterized by fuzzy growths.
Insects:
- Arthropods: Examples include wood-boring beetles, silverfish, and clothes moths that feed on collections.
- Damage: Holes, weakening structures, often hidden until acute infestation.
Rodents & Birds:
- Mice and rats cause structural weakening and contamination of collections.
- Birds like pigeons can attract secondary pests with droppings presenting health risks.

Pesticides: Previously common in museums (e.g., naphthalene) are now discouraged due to health risks (e.g., skin irritation, potential carcinogens).
Precautions: Use personal protective equipment (PPE) and maintain records of pesticide exposure.

Prevention:
- Exterior: Maintain building integrity; create dead zones to deter pests.
- Interior: Controlled environment for artifact preservation (temp. & humidity).
Monitoring:
- Regular inspections; use traps to identify and document pests.
Identification: Accurately identifying pests to tailor control measures; accessible resources like field guides.
Mitigation: Non-chemical control methods emphasized; chemical alternatives as last resort.

Good Housekeeping: Maintain cleanliness to prevent revolting pests.
Isolation of Infested Items: Remove infested artifacts from others immediately and monitor.
Mechanical Removal: Vacuuming using HEPA filters to remove pests and debris.
Non-Chemical Methods: Freezing, anoxic environments, and modified atmospheres for pest eradication.

Contracting Out: If using professional pest control, select firms that understand museum-specific needs, with staff oversight.

Clothes Moths: Larvae feed on proteinaceous fibers, causing distinct holes in textiles.
Dermestid Beetles: Inflict damage on organics like leather and wool; create characteristic feeding holes.
Silverfish & Firebrats: Target starch-based materials, contributing to habitat deterioration.
Rodents: Create nests and contaminate items through droppings; spread diseases.
Bats & Birds: Require exclusion methods due to health risks and property damage.

Action Based on Activity:
- Active infestations: Immediate isolation and treatment.
- Inactive infestations: Clean debris and monitor.
Cleaning Techniques:
- Vacuuming to remove pests and debris.
- Solvent cleaning for textiles, though risks to artifacts must be evaluated.
General Treatments: Include freezing, pressure treatments, and atmosphere modifications.
Chemical Eradication: If necessary, select the least toxic options, and document all actions thoroughly.
Safety Measures: PPE essential during treatments; understand the risks of fungi and pesticides.