[Market-farming] Bats for cucumber beetles

John Hendrickson jhendric at wisc.edu
Tue Nov 28 11:16:59 EST 2006

Well, isn't that astonishingly good news!  Those numbers seem to suggest 
that cucumber beetles are a preferred (or at least abundant) food source 
for the big brown bat.  I will admit that I was skeptical about whether 
bats eat cucumber beetles when this topic came up on market-farming.  I 
guess this means the cucumber beetles are active and flying at night.  I 
have bats in my barn (don't know what species) but had a really bad 
infestation of cucumber beetles last year.  When they fly out of the barn 
at dusk they always seem to be headed down towards the nearby river.  I 
don't know if they stay down there to feed or are just going down for a 
drink before feeding throughout the area.  How large an area does a bat 
colony typically use for feeding?


John Hendrickson
Center for Integrated Agricultural Systems
University of Wisconsin-Madison
1535 Observatory Drive
Madison, WI  53706

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