[Pollinator] FW: Concern about propylene glycol

[David_R_Smith at fws.gov]

One should be sure of what chemical or compound they are discussing before 
raising concern and warnings about it.  I use tech-grade propylene glycol 
in my pollinator traps; the form used as a food preservative.  There are 
enough chemi-phobes out there without spreading misinformation.  There is 
a recent paper that discusses its use in insect traps: Nontoxic antifreeze 
for insect traps. Entomological News 119(4):361-365. 2008.  Besides dogs 
and cats should not be running loose outside where they can encounter 
dangerous substances anyway.

Dave Smith
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