Mice plague and bird deaths

To: "Tony Keene" <>, <>
Subject: Mice plague and bird deaths
From: "Ross Macfarlane" <>
Date: Mon, 30 May 2011 18:17:30 +1000
Good tip but I would not encourage anyone to try getting their hands on it. I used to be manager of a plant that made an antifreeze product occasionally and the guys hated Bitrex with a passion. Despite wearing dust masks they would complain they couldn't get the taste out of their mouths for days. Not something to muck around with in a domestic setting, if anyone was thinking about it...

-----Original Message----- From: Tony Keene
Sent: Monday, May 30, 2011 4:04 PM
Subject: Mice plague and bird deaths

Just been doing a spot of research and I wonder why the companies that make the mouse and rat poison don't include trace amounts of denatonium benzoate - apparently birds can detect it at much lower concentrations than rodents. If it was included in the formulation, it would deter birds from eating the posion baits and might even be present in rodent corpses in enough concentration to deter birds from eating those as well. In case you're wondering what the stuff is, it's also known as Bitrex and is the bitterest substance known - 10 parts per million can make something inedible to people and they use it in antifreeze to stop kids drinking it.


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