Top critical review
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Foggers didn't kill the fleas
on September 2, 2013
We've had a bad flea infestation this year and when all of our usual remedies failed to keep on top of the problem, we decided to go with these foggers when we were headed away on vacation for a couple of days. We had been treating the dogs with Frontline Plus, combing them and vacuuming the house frequently. We had tried Borax and found that to be ineffective as well. So I bought two of these three packs for our 2000 square foot home. Each fogger is rated for 500 square feet, so I figured that would give us plenty of coverage. As we were leaving, I set out the foggers according to the directions (elevate in the center of the room, place on some newspaper or paper towels to prevent staining), then went around to each of them, setting them off in sequence. I could smell the insecticide as I worked my way to the front door and out to the car.
When we came back two days later, there was no smell left in the house. I went around and cleaned up the empty cans and there was no staining. When we pulled out the vacuum to clean the rugs, however, we were absolutely shocked to see hordes of active fleas jumping on our ankles in the very rooms where we had used the foggers!
What I assume happened is that the fogger killed the live fleas but didn't do a thing to the eggs and larvae that were still in the room when we left. When we came home, the vibrations from the vacuum must have woken the larvae and that's when they started jumping like mad. This repeated itself throughout the house to the point where our infestation appeared to be worse than ever.
We took note of all of the locations where the fleas were jumping, and I grabbed a bottle of Ortho Home Defense Max spray with Bifenthrin and Zeta-Cypermethrin. The spray is derived from Chrysanthemums and is non-toxic once dry. We had used that in the past successfully to treat issues with ants, so I worked my way around the house manually spraying the baseboards, cracks between our wood floorboards, and areas of carpet where we knew fleas had recently jumped on us. It took about fifteen minutes to work my way around the house. I saw several fleas while spraying and now, 24 hours later, the dogs have stopped itching and the problem seems to be under control.
So in summary, you're probably better off going with a product that you can manually apply to the affected areas. While these were easy to use and left no residue or mess, it also was an incomplete solution and, as several other reviewers also noted, needs to be paired with another product to handle the eggs and larvae anyway.