Got Mosquitoes? Use Bacillus thuringiensis sub. israelensis (Bti) and Cedar Oil!!

Now is the time for those pesky mosquitoes. I don’t want to use all those nasty chemicals. There has got to be an alternative!


There are natural ways to rid yourselves of the mosquito nuisance. Let’s explore the options:

  • Remove all sources of standing water, where possible.
  • Keep grassy and/or weedy areas mowed on a regular basis.
    • Mosquitoes will reproduce in high humidity areas!
    • Mosquitoes will lay eggs in wet soil and mud!
  • Use Bacillus thuringiensis sub. israelensis (Bti) (OMRI Listed)* in standing water.
    • When eaten by mosquito larvae, Bti is toxic to the point of death in 4 – 24 hours.
    • Mosquito larvae
    • The gut of the larvae ruptures from the formation of crystals produced by the bacteria.
    • Bti is dispensed in the form of crumbles, powder or doughnut shaped dunks.
      • Bti is placed in old tires, rain barrels, ponds, ditches and flood water.
    • Bti is non toxic to people, pets, livestock and beneficial insects. It is only toxic to certain larvae of the fly family (Diptera).
  • Cedar oil (OMRI Listed)* is a safe, effective product to spray.
    • This essential oil (mixed with water) may be sprayed on standing water sources.
    • May be sprayed on your dogs and cats.
    • May be used as a repellent on clothing and lightly sprayed on exposed skin (not your eyes or mouth). (It is also a great tick repellent)

These products may be purchased at the big box stores, garden centers and online.

* OMRI Listed: The Organic Materials Review Institute (OMRI) is a national nonprofit organization that determines which input products are allowed for use in organic production and processing. OMRI Listed—or approved—products may be used on operations that are certified organic under the USDA National Organic Program.

Now go get them!


2 thoughts on “Got Mosquitoes? Use Bacillus thuringiensis sub. israelensis (Bti) and Cedar Oil!!

    1. It all depends on the brand. Plus, for outdoor use, read the label from the product you are using. Some companies sell ready to use and others provide concentrate only.
      Some use cedar oil for a repellent and others as a pesticide.


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