If you get D. E. make sure it is food grade. This is VERY important. Otherwise it could make your pet sick or worse. I use an old flour sifter and do our dog yard. There are a few draw backs it washes away after a good rain so you have to reapply. It also will kill just about anything outside, like bees, ladybugs etc.
Google Diatomaceos Earth, it will explain how it works. I have dusted my horses, goats, and chickens with it for lice, mites, horse flys etc. I also use it for wormer for my animals, it can also be put in flour and such to keep bugs out. It's very inexpensive and has so many uses. I do not use it in my flower garden because it will kill bees. I also spend the money and buy Advantix for ticks as we live in a high tick area. It is well worth the money and having multiple dogs, it sure beats getting Lyme disease.
If you can squeeze out the money, liquid Sevin is the best flea killer for in and out of doors. Apply it on the interior perimeter (baseboards, cabinet backs) and then mix another canister and go right out to apply another round on the exterior perimeter of the house (along the foundation).
It can (and should be for maximum control) applied to carpets and floors inside the house, and to the lawn and beds outside. Use the 'fan' nozzle sprayer tip.
Follow the label directions for application strengths and timing, it needs to be reapplied after a rain or other wet weather event.
It is well worth the money, you end up saving money if you follow the directions carefully. It is safe if used as directed, and after about a month you'll have a flea free home, garden, pet, and people. :)
The best non expensive and safe product you can use indoor or outdoor is white vinegar (alcohol vinegar). It will do as good as chemicals: I use it this way. I put 0.4 to 0.6 inches of white vinegar in a large and flat recipient like a large tart mold it has to be either metal shiny or white. At night I put a small led candle in the middle of the recipient.
It works better at night if it is the only spot of light in the place but if the recipient really shines it works also in the daylight without the led candle. Fleas are attracted by light they jump for the light and fall in the vinegar which kills them in less than a minute. The power of the white vinegar last for a long time. In the morning I filter the vinegar with a funnel and a tissue or a coffee filter to get rid off the dead fleas. I use it every day and night until there aren't anymore dead fleas caught in the vinegar in the morning.
Indoor the other non expensive and safe killer is a powerful vacuum cleaner. Vacuum cleaner does not just capture the fleas in its bag it actually kills them (http://www.reuters.com/article/2007/12/19/us-vacuum-idUSN1952863920071219) and it works ! The trick is that you have to treat outdoor and indoor at the same time or else the fleas will go from one place to the other.
Hope this helps, Catherine
A good product to use to rid fleas is D.E. Powder. It can be purchased at any of the big box stores. It can be used in doors on carpets also. The powder can be used in a big basin for birds to dust them self with. It also kills lice, and many other kinds of pest. Pool workers also use this same product for the back wash in the pools. It is very reasonable prices also. Jeannette W. Palm Beach, FL.
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