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Evicting Carpenter Bees From Horse Barns

Evicting Carpenter Bees From Horse Barns
Q.Carpenter bees have taken up residence in my horse’s shed. I am trying to find the best way to get rid of the bees without harming my horse if he comes into contact with the insecticide used. The insecticides I have seen most effective against carpenter bees are Drione dust, Tempo 1% Dust, and Delta Dust. The labels say “for use around horse barns,” but then have a warning about coming into contact with animals. Are these products safe to use, or do you have any other suggestions?
 
A.Carpenter bees are important pollinators and do not aggressively defend their galleries, but the large bees are intimidating and, when abundant, can cause extensive structural damage. This can be compounded by woodpeckers that drill holes in the wood in search of carpenter bee larvae.
 
The weathered, slightly roughened surfaces of soft woods in barns and sheds provide ideal nesting sites for carpenter bees. Every spring, carpenter bees that have spent the winter in their tunnels emerge to expand established tunnels or begin to chew new ones, often nearby. These bees stock their tunnels with pollen as food for their developing larvae. Large aggregations of carpenter bees can accumulate in a structure over time.
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