PREVENTIVE CONSERVATION UVA, Resúmenes de Conservación y Restauración de Bienes Culturales

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Pests

UvA Minor Preventive Conservation Agnes Brokerhof Rijkserfgoedlaboratorium, Amsterdam 11 March 2026

Part A

1. Biodeterioration
2. Mould
3. Pests in heritage Part B
4. Integrated Pest Management
5. What would you do?
6. Be safe!

Today’s menu

Mould - fungi

Disturbs appearance Looks ugly Destroys material Destroys buildings https://www.theguardian.com/artanddesign/jonathanjonesblog/2014/jul/23/mummy-curse-legend-discovering-tutankhamun-ashmolean-museum

Spores Mycelium Hyphae Fruiting body

Mould - fungi

Keep RH < 75%!

http://www.dpcalc.org/

Climate, mould, and preservation

Desert Tropics

Are these pests?

Leafcutter ant Atta cephalotes , Wilhelma Zoo, Stuttgart Mould growers Can carry 50 times their body weight Dung beetle Scarabaeus laticollis © Rafael Brix Can move 1100 times their body weight https://en.wikipedia.org/wiki/File: Dung_beetle_working-001.ogv

What are Pests?

https://www.catalinarug.com/blog/how-to-protect-oriental-rugs-from- moth-damage/ https://brightonmuseums.org.uk/booth/plan-your-visit/protecting-the- collections/

They build nests

They produce waste

Know your opponent – count legs

2 or 4 legs: 6 legs: 8 legs: (^) 10 or 14: Even more: Birds, bats, rodents (vertebrates) Insects Spiders (^) Crustacea, Woodlice centipeds, millipeds

Insect characteristics

Antenna Mouth parts Compound eye Elytra Shields covering the wings X Tarsi X X Leg Abdomen Thorax Head

Complete metamorphosis

Flies Beetles Moths Butterflies Bees Wasps Larvae eat

Requirements

• Oxygen
• Food: organic, nutrients
• Temperature: 5- 45 °C, optimum 20- 35 °C
• Moisture: RH 50-90%, MC >10% Behaviour
• Light: attract or repel
• Shelter: cover, hiding place