Will cedar oil kill bed bugs?

YES! If you use Nature's Defender which has Cedar Oil and Silane. This is a contact killer. The silane makes each molecule of cedar 8 times more potent. The cedar must contact the bug or larvae to kill it. This will happen within 40 seconds of the smallest drop. I bought this product online at Ohio Cedar Oil and tested it myself.

Thank you.

-I would like to add that while Cedar Oil may be a contact killer, it will not be sufficient to rid a residence of bed bugs. You must use heat or a residual killer. Most bed bugs only come out at night, so if you spray the bugs you find during the day, there are probably hundreds that you didn't get. You will need a PCO to coat your bed, mattress, other furniture, baseboards, and outlet covers with a residual killer, so any bug that contacts that place later will die.

Contact killers may give you more confidence, but they cannot solve the problem alone.