[jonshariat]

It's interesting that it also triggered their ballooning, the mad scientist in me wonders if you could create a big field over a large area (like your back yard) and trigger a mass exodus of spiders.

[sammorrowdrums]

Or attempt a weird version of this raining upwards trick from Now You See Me 2, but with spiders... https://youtu.be/6qBwKnh99ck

[justbaker]

This mass-ballooning has occurred in Australia from the spiders fear of drowning from heavy rains.

In theory, your idea sounds plausible :)

[jonshariat]

haha sounds like a bad/good startup idea: Green NoHarm Spider pest control