Interesting fact: The flea actually stays on the pet only 20% of the time. When treating the house, must do it for 3 months consecutively. I heard that all insects eventually become immune to whatever insecticide we are using too. Yuck. I use Frontline too & I'll occasionally see a flea. Yucky.
Last edited by mimimomo; 03-08-2009 at 06:36 PM.
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