Believe it or Not, but I personally put stock in the blood chemistry side of flea control. In other words, that you can change the "taste" of your (or your pet's) blood so that fleas don't choose you as their next meal, and if you do get bitten, they don't stay for an all day buffet! It's as simple as ingesting Brewer's Yeast (I don't, but I don't have a flea infestation). I have in the past used this technique for my dog. You can buy the Brewer's Yeast at a Health food store (sometimes at local retail pharmacies). Dosage for pets is typically 2x's a day (one morn/one evening), it takes a while for it to build up enough in the pet's blood system so the fleas that do hop on for a meal generally hop back off. Also, there are usually no worries in getting your pet to take them, as dogs at least, like the taste so they can even be used as a twice a day treat instead of a twice a day pill.
As for the rest of the N.O. Critter situation:
It's a sad situation that there doesn't seem to be even ONE government (local or State) Agency that you can call to deal with critter invasions in populated areas (you have people to deal with blighted homes, the mosquito population, gators, and nutria, this is just one more aspect of tthe same - public safety!), particularly when they know the problem exists. So to local/state government, get off your red tape laurels and at least institute a temporary squad to deal with the calls from your voting constituents until the population explosion settles back down to normal! It is part and parcel of public safety (and if you don't think so, then you go live where and with the invading racoons - who can carry rabies and are known to look amusing, but the reality is that they can be very aggressive wild animals, particularly when cornered-like a head pops into take a look in their attic home or when surprised while dining in the dark-they may or may not bite, but I guarantee you won't think they are so cuddly cute when both parties surprise each other accidentally).
You can't expect that Nature and Wildlife won't adapt, the human population may feel that N.O. Is theirs, but the wildlife were here 1st and we are constantly pushing them out of their natural habitat by developing the land (or we go live in the middle or next to wild areas), cross population of available land will happen. We can never rid our environment of them nor should we wish to do so, because if we do the World would be a much sadder less wonderful place to live.
It also means the wise man in the area always ties down his garbage can lids, never sets a garbage bag anywhere but INSIDE a garbage can, and the less inviting you make your home, yard, garage, the less likely the critters will be to choose YOUR yard, home, garage (or garbage).
Good Luck, Wild New Orleans!
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