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Monteria
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« on: April 17, 2009, 09:29:40 am » |
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Fleas, just like intestinal parasites, often build up resistance to a single pesticide over time. If Bayer is becoming less effective, I would do a month or two of Comfortis treatment to kill the resistant fleas. Comfortis attaches to a different receptor in fleas than any product out there so there is zero resistance. After you have knocked out the resistant fleas, you can go back to Bayer for another year or two.
On your second question, I have sprayed the whole yard with Bayer and it worked great.
Steve
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