Concerned about carpenter bees living amongst your beans? Not to worry! I'd welcome a few nests in such a location. Damage only occurs if the population is large enough to cause actual structural damage to the wood.

Each carpenter bee tunnel may contain a handful of brooding cells, not a very large number. The short-lived males are funny, curious, and always eager to 'pick a fight'. They are harmless. The females will only cause you a problem if you mess with their nest sites.

Next year, keep your crossbeams painted or stained and there will be less likelihood of carpenter bee nesting.