how to evaluate effectiveness
By Alvin on 07/12/2014
Verified Purchase
the chemicals are available to reduce the prevalence of fleas. however it is difficult for someone uneducated to method to conduct an evaluation of their effectiveness. I am presently using more than one product, but if i were not, also using a good set of curved jaw surgical hemostats mu dogs would be suffering a lot. it's as if someone were dropping a load of fleas in my yard on a regular basis.
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