[jmheflin]

Try to let the soil/media dry out between waterings. I use yellow sticky traps and neem oil for plants I am going to eat. For ornamentals, I use Marathon 1%, shake a bit on the soil every 2 weeks or so.

[jacobush]

Theoretically, shouldn't it be possible to create growing conditions which are filtered, i.e. no pests can enter the growing area?

[jmheflin]

Yes this is possible! Usually done with repurposed clean room pass thrus. It becomes harder to achieve as greenhouses get to 1+ acres in footprint.

[pvaldes]

Using pesticides is incompatible with selling fruits that grow from a rooted stick IMO. There is not enough time to respect legal safety intervals.