Host selection behaviour of deathwatch beetle, : Oviposition preference choice assays testing old vs new oak timber, Quercus sp.Xestobium rufovillosum: Oviposition preference choice assays testing old vs new oak timber, Quercus sp.

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Abstract

In a choice bio-assay adult female deathwatch beetles were offered two dendrochronologically dated wood blocks from oak timber to study oviposition preference behaviour. There was a clear preference for ovipositing on old wood dating from the 13th to 19th centuries rather than new wood from the 20th century. Control, same-century choice, experiments showed that beetles will oviposit on young wood and that the age of the wood does not alter the overall oviposition potential. Oviposition frequency varied with insect age. Fecundity of insects collected from an infested building was similar to that of insects maintained in culture.

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