In article <Pine.3.89.9602050902.A26878-0100000@services>, Rachel Ward
<[log in to unmask]> writes:
> According to James Harmon's Integrated Pest Management manual, PDB is no
> longer available for sale in
> the U.S., and Naphthalene is, at least now, the primary ingredient in
> mothballs, but it
>
> Rachel Ward

Not so--I buy PDB blocks at the local drug store.  Granted, more than half of
the brands and styles of moth repellent are naphthalene, but PDB is not hard to
find if you read the packages.

Robin Panza
Section of Birds
Carnegie Museum of Natural History