I’m not into killing little critters, so the last thing I would want to do is tell you to use essential oils to kill these guys. You can, however, use essential oils to “mark out your territory” so to speak >>
For centuries, India's farmers have known that the Neem trees withstand the periodic infestations of locusts. Neem extracts applied to vegetable crops repel locusts (Heinrich Schmutterer, 1962). Like most plants, neem deploys internal chemical defences to protect itself against leaf- chewing insects. Its chemical weapons are extraordinary, however.