Neither will kill bed bugs. You need a pro exterminater to do that. Done with heat and other chemicals. Need to call asap, they are very evasive.
Vinegar, salt and several drops of blue Dawn is for killing weeds
Deb, It will not kill bed bugs. If you cannot afford a professional ecoraider is a good one to use. Buy it and the one gallon sprayer. It is safe for humans and pets but not plants. You will have to wash and all clothes and bedding every time you spray. With the spray and sprayer it is around 120.00 which is a lot cheaper than a professional. Here is a link to check it out and if you look on ebay it is probably a little cheaper maybe.
Cinnamon is supposed to get rid of them but I'm not sure how well it works.