A book louse has been in the collection... how to get rid of it?

Hello! Please help me... In wooden boxes with glass, with a hermetically fitting lid (but apparently not quite..) found book lice. Tell me, what is the best way to poison them?

For many years now, I have been using a regular cat collar (which is for fleas): I cut it into fragments and place it either directly in the boxes or directly on the shelves in the cabinets where the collection is stored. Ugh, ugh, ugh - no leather eaters, no grinders, no hay eaters, or anything else-I completely forgot. The number of collars depends on the size of the collection. Replacement - once a year.

I'm not sure that this collar will help with the fact that the insects have already managed to get inside. IMHO now is the time to put the collection in a sealed container, fill it with toxic gas (for example, sulfur dioxide-burn the sulfur) and leave it for a while.

I use good old ethyl acetate for cooking. Cotton wool soaked in EA is pinned in a box, the box - in a zip-bag. A day will stand, for reliability-just all the wrecking six-legged brethren will die.

I'm not sure that this collar will help with the fact that the insects have already managed to get inside.

As for the larvae of beetles inside collectible specimens that appeared there even before the collar was applied, it may not help (although I didn't have a chance to check this and, hopefully, won't). But Uralochka is talking about "book lice", that is, hay eaters. But I think they should fly away - like fleas from a cat (just do not spare fragments of the collar for boxes ).
As for the collar as a preventive, repellent means-I have tested its effectiveness for at least a decade and a half of use: it works "with a bang". Periodically occurring in the apartment leatherheads Smirnov (in the corners, under the baseboards) and his cousins from the genus Anthrenus (with the onset of the warm season occasionally on the windows, window sills) to the collection is not even close. And I have it not so small - the first copies are dated 1970. But I had to use mothballs, brrr

The post was edited by Dmitrich - 21.03.2022 20: 22

Has anyone used thymol or bee products containing it (thymol B)?

Well, if it is for beekeepers, then the insecticidal properties are pretty bad.