swarm traps- need suggestions

[heaflaw]

My experience has been that every year I find several swarms in the same general spot, but it is a different spot each year.  Last spring it was a grape vine.  The year before, it was a small willow oak.  One year it was a cedar tree.  Could it be that once a swarms has picked a spot and even though it moves on that later swarms somehow "smell" the previous presence of the first swarm and are attracted to that same general spot?

[Michael Bush]

>Could it be that once a swarms has picked a spot and even though it moves on that later swarms somehow "smell" the previous presence of the first swarm and are attracted to that same general spot?

I beleive they do, yes.

[ArmucheeBee]

But would the pheromone not be 'washed' away by rain, freezing (especially for you guys up north), etc.  Are you talking about during the same season or from one spring/summer to the next?

[Michael Bush]

Bees have a remarkable sense of smell.  Plus all the factors that attracted them in the first place are still there as well.