Aug 23

This past week there has been a lot of talk about bedbugs on the Apartment Association online discussion group.

Bedbugs made a resurgence after DDT was banned due to its harmful effects on the environment and humans.

Diatomaceous Earth works well and is non toxic to mammals and in fact is feed to dogs, cats and even humans in some parts of the world to rid internal parasites like tapeworms.  Therefore you don’t have to worry about toxicity to tenants.

Downsides of Diatomaceous Earth:

  • It is a bit messy – white powder in the application area.  This can be lessened by using a cattle duster or plant duster.
  • It is not a fast as chemical based or heat solutions.  The trick is to do a knock down with a pyrethrin based chemical first.  Pyrethrins are semi organic, derived from chrysanthemum plants.  They are alleged to be people and pet safe, have been in use for many decades and have little residual.  The latter is great from a toxicity concern, but not so great at keeping bugs at bay.
  • It is odorless.  Why is that a downside?  People tend to believe stinky products are more effective products.

If you are going to go the pure chemical route JT Eaton products work well and are consumer labeled.  Apply the red one and then a week later the blue.  Cyonara 9.7 is also currently effective.

[Update] Brian Peters sent me a message that reminded me that DNS has a good bedbug brochure that you can provide your tenants.

Do It Yourself Pest Control has a really good overview of how to effectively treat for bedbugs.  They often, but not always, have the best prices if you are buying in quantity.

Here is a visual overview of how to treat for bedbugs

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