Dave Hamilton wrote:

> Cut a 2" hole in a 2 quart plastic coke bottle

Surely the hole should be smaller?  A 2" hole would allow butterflies to 
enter.  I have previously seen instructions for this type of trap with a 
hole size of 10mm (just under 1/2").

Best wishes
Peter Edwards
beekeepers at stratford-upon-avon.freeserve.co.uk
www.stratford-upon-avon.freeserve.co.uk/

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