[log in to unmask] (Heather Dumka) wrote:

We would be interested in hearing from anyone who has experience working
with portable carbon dioxide or other anoxic fumigation systems.

Heather,
I do not have first-hand experience with this, but attended an excellent
workshop on anoxic pest control given by Mark Gilberg and Vinod Daniel
at the '94 WAAC meeting.  Gilberg and Daniel provided much practical
information on the use, fabrication, and monitoring of easy-to-assemble,
effective anoxic systems from the simplest, heat sealable envelope
designs to the mention of the conversion of pre-existing fumigation
chambers (such as the one at the Glenbow).  Mortality rates and
treatment schedules were discussed using nitrogen vs other gases since
there was a concern that, for example, some wood boring insects such as
the cigarette beetle (especially its egg stage), as well as other
beetles, are resistant to CO2.  On the COOL network, John Burke has a
list of materials and supplies for anoxic fumigation systems posted
under "Pest Management".  Other references at hand are the Jan and Sept
'94 WAAC Newsletters, both p. 3.   Hope that you find some of these
people and references helpful.