Pest Farmer Issue

[PeePeePUUpuu121]

I dont know if im just demented but I dont know how to setup pest farming so it kills the pests after it reaches like 5 instead of letting 8 pests sit there until i reach my rewarp. Is this a bug or have i just messed up the settings.

[Practice-comp]

turn on "start pest destroyer during farming"

[brejein]

where is farmhelper guide? i just cant set the pest farmer, does it require biohazard armor? i already turned this feature on "start pest destroyer during farming"