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Q&A Home

Joe from Suffolk, Virginia writes,
06/02/2015:

What Is The Expected Wait Time Before Permethrin Kills Fleas?

I have applied Permethrin SFR as a broadcast spray inside my home, also mixed with Archer IGR, both per their respective manufacturer's instructions. The solution was sprayed due to a flea infestation that occurred while I was away for business (it is also a 100+ yr old farm house so very susceptible to bugs etc). Are the affects to be expected immediately or after a delay? I have had great success with previous purchases from you guys and have faith this will be the same, just not sure how long I have to wait. Many thanks for your help.

Answer:

Depending on many factors such as insect type, etc  Permethrin SFR 36.8% can take minutes to hours to kill insects. Permethrin SFR is not labeled to be applied as a broadcast inside. You would want to use Archer mixed with a product like Onslaught labeled for broadcast. Please keep in mind that it can take at least 2 treatments to eradicate fleas. Be sure to keep up with the vacuuming too.

Answer last updated on: 06/03/2015

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