Flea Collar For Insect Pests
MARK MAZER AND FREDRIKA MAZER (Sun, 12 Dec 2010 11:45:37 PST)

Another technique is to purchase inexpensive flea collars at the
supermarket.

Er, there are at least 5 or 6 different insecticides used in the various
dog and cat "flea/tick collars". 'Broad spectrum" advice like this could
prove troublesome.

Mark Mazer
Hertford, North Carolina USA
Zone 8