[megansmomma]

Now I am confused. I was told by my vet that bunnies carry FLEAS not flies. We also have a large rabbit population in my area and I changed my heartworm prevention to Sentinel to help fleas that the rabbit might carry. Do you not use a HW preventative?

As for the water supply, I don't understand how you are saying that using a pesticide would contaminate the Chesapeake Bay. The amount of pesticide that you would need to use comparatively to contamination of such a large body of water would be an eye dropper. Furthermore, there are many private wells in my area and I have spoken with the health department numerous times regarding mosquito control. They use both a brick insecticide as well as fogging to combat mosquitoes and West Nile virus and it was never even mentioned as a cross contamination issue. Additionally, the soil acts as a filter of contaminates. As the water leaches through the soil the pesticide dissipates and is further broken down. A pesticide would need to be carried through the ground and into the water table, then it would been to be carried into the bay. Unless you were dumping truck loads of the stuff directily into the bay I cannot imagine this ever being an issue. In Chicago, we have a mosquito abatement program that sprays all along Lake Michigan as well as retention ponds all over suburban Chicago. Lake Michigan is the water supply of millions of people in the Chicago area and surrounding suburbs. I've never heard this being even a slight concern to cross contamination. Personally, I would be straying my yard to prevent this from happening ever again.