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Key
Features:
These fast moving, minute, cream-coloured or
light brown insects, only 1mm long, occur in small numbers
in many premises.
Biology:
There are several species, known collectively as Psocides.
All have soft bodies. Very few species have wings. They
are not related to the parasitic lice. Sticky, pearl-coloured
eggs are cemented to damp surfaces and, instead of a
larval stage, the insect matures through four recognisable
nymphal stages, taking about a fortnight in total. One
species of booklouse produces an audible tapping noise
by banging its abdomen against paper or wood.
Distribution:
Booklice may crawl in large numbers over stored papers,
books, walls, furniture, and other materials in damp,
warm, undisturbed areas especially during the spring
and summer months. They can also occur in huge numbers
in new properties where the plaster is still damp.
Significance:
The adult booklice are believed to feed on microscopic
moulds that grow on the glue of book-bindings or on
damp cardboard, damp food (especially cereals) or on
the surfaces of plaster, leather or wood inside buildings.
This can be very damaging where large numbers of booklice
appear.
Control:
Lowering the relative humidity in a building hinders
the development of booklice and can cause death due
to desiccation (drying out). Chemical control is rarely
needed but various sprays can destroy infestations,
when applied to the rotting areas.
Good ventilation can prevent further infestations from
occurring.
If you have a problem with booklice, Safeguard
can help you! Contact us
today for more information.
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