Other Types of Woodworm


Deathwatch beetle (Xestobium rufovillosum): Adult:


Chocolate brown insect around 8mm in length, with a variegated appearance due to the presence of patches of yellowish hairs. Very likely to find the beetles during the emergence period – mid-March to end of June.


Damage:


Attacked wood is virtually always hardwood with some degree of decay, often by the white rot, Donkioporia expansa. Wood is usually oak. However, Deathwatch beetle will attack softwood if well rotted and in contact with infested hardwood.


Looks something like large Furniture beetle damage. Round holes about 3mm diameter, often very extensive tunnelling. Lots of frass usually present; frass is ‘bun’ shaped, readily visible to the


naked eye. Deathwatch beetle is not usually found in Scotland or Northern Ireland.


Wood-boring Weevils (Euophryum confine and Pentarthrum huttoni) Adult:


Beetles are small and black; up to 5mm in length. They have a short snout from which the antennae emerge. Identification:


Wood-boring weevil damage is very common in damp skirting boards and embedded joist ends. Attack soft and hardwood which have ROTTED! This is readily evident. Tunnels tend to run along grain, frequently breaking the surface.


Any clearly identifiable emergence holes are ragged and around 1mm diameter. Frass like Anobium frass but likely to be more ‘sticky’ due to the dampness. You may find both adults and larvae in wood - both burrow along the grain.


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Wood boring weevils are effectively a secondary pest in that the real problem is the dampness/decay. © Timberwise (UK) Ltd 2009


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