UV lights

[JH]

Hi folks - A friend mentioned to me that he has been seeing very few moths at his lights in northern Pennsylvania.  He read on the package of his UV bulb (one of those semi-circular tubes) that they loose their effectiveness after a while.  He was wondering, half seriously, if this was just to get people to by more bulbs.  Has anyone heard of this happening?  


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John Himmelman
Killingworth, CT USA
jhimmel at connix.com
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Visit my websites at:
http://booksandnature.homestead.com/booksandnature.html
www.ctamphibians.com
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