I would love to give some EXPERT advice. This is what we do for a living.
We have 2 companies 1 that is only for bed bugs & does Thermal Remediation or heat treatment. The other a general pest control company.
1. Spray Pesticide:
It is very difficult to kill bed bugs with pesticide, even after spraying they can produce eggs.
There is not currently a pesticide that can kill bed bug eggs. Also spraying will make bed bugs go further into places they would not normally go and spread through the property. This is why we have done many full buildings because they have been spraying for years & spread the problem throughout the building.
2. Thermal remediation / Heat Treatment:
The only treatment that can kill all bed bugs and eggs with only 1 treatment.
But the heaters they are using makes all the difference.
3. Diatomaceous earth: the powder they are talking about:
DE is a significant inhalation hazard. While it can be applied safely (a very fine dusting barely visible to the eye only in areas where it will not get kicked up into the air), if improperly applied as we have heard about people doing, it can do significant damage to your lungs.
Also, often you will not see the results of the damage until years after exposure. So, unlike some chemical pesticides that cause immediate reactions to let you know you’ve been overexposed, DE doesn’t have a way to alert you that you’ve applied it improperly. The DE that a consumer can buy off the shelf does not have the killing compound in it that the pest control techs have. As well as knowing how to properly apply the dust to be effective.
I hope this helps: You can see more info at: bcbedbugexpert.com