Do it on colder weather or the coolest time of day as well.
Cold stuns stinging insects.
Heh - ‘tis not gonna be cool around here any time soon. This weekend looks good for not much except a trip to swim at a clean lake. But, at least we should finally dry out a bit. (I was awakened a bit earlier by thunder and a few small hailstones hitting the awning over our back porch.)
Now, I may have to fight the battle of the surviving plants all having shallow root systems. All the stuff I planted deep has died or is in horrible shape.
BTW, it looks like the wood bees in the wellhouse have bitten the dust. Both active ingredients in the fogger spray ARE rated as highly toxic to bees: Tetramethrin (0.20%), and Phenothrin (0.20%) are not at particularly high concentration in this product*, but, apparently they persisted long enough to do the job, eventually.
* https://www.cutterinsectrepellents.com/en/products/backyard/backyard-bug-control-outdoor-fogger
Both are pyrethroids and thus, used properly, relatively safe for humans. But, keep the cats away...