Eucalyptus & kerosene probably mess up the buggers' scent trails so they can't follow each other and probably can't find their way back home. Maybe Pine Sol would work. Or you could plug the outlet

Show me the way to go home
I'm tired and I wanna find my hill
I laid down some scent about a minute ago
I thought t'would be there still
But aimlessly I roam -
Cuz all I smell is a pine cone
As I wander, I'm bitchin' cuz I'm lost in this kitchen
Wontcha show me the way to go home!