Wasps between Siding

[angelshamshel]

Hi, We have always had a problem with wasps around our house over the years and were able to get at, and remove the nests. This year the wasps have decided to fly in the gap up between the siding (second floor) over the patio door (first floor). The nest is not visible either. This 1/2" gap has always existed and I assumed it was how siding was installed over areas such as patio doors. It is tight to the brickwook on the first level, however. I've sprayed the gap between the siding and inner sheathing but this is a short term solution. Can flashing be added or should it be caulked in some way? I realize the siding must retain the ability to move with heat and cold also. TIA Dave

[Phisherman]

We get wasps building nests above the door behind the pendent. I use wasp/hornet spray, maybe twice a year. The residue from the spray keeps them away. I am hesitant to close it up, possibly creating a place where moisture can get trapped. If the wasps were not so close to the door, I'd leave them alone.