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PestNet is a network that helps people worldwide obtain rapid advice and information on crop protection, including the identification and management of plant pests. It started in 1999. Anyone with an interest in plant protection is welcome to join. PestNet is free and is moderated, ensuring that messages are confined to plant protection.
Pests > Pest Techniques > Techniques > Cockroaches, damage to insect collections, PNG
November 2004. Papua New Guinea insect collection reported a cockroach problem and asked how to control it.
It was asked whether the cockroach problem was inside the specimen storage units (store boxes, entomological cabinets, drying cabinets, etc.); that is, are the cockroaches getting to the actual specimens? If so, you will have to exclude them by using only good quality units with close-fitting lids. Any infested units can be disinfested by deep-freezing them for 1 week. (But of course they can be reinfested afterwards if not sealed.) A cockroach problem on the premises probably calls for a more traditional commercial pest control solution. It seems the problem occurs when the insects are pinned and left on the bench overnight before placing in cabinets.
A similar problem occurred in Samoa, with lizards, and the only solution was to put the pinning boards in sealed containers before transfer to permanent storage.