Here is the article I promised!
For natural flea control to be effective, one must start with a dog or cat who is healthy. A pet who is sick, fed a poor diet or is generally unthrifty is more likely to have flea problems.
It is absolutely necessary to do these things when instituting natural flea control:
1. Flea comb once daily
2. Feed a healthy diet and make sure your animal is in general good health.
3. Fleabusters (sodium polyborate) in the house for flea control
4. Treating the yard with beneficial nematodes (for fenced pets)
Over the counter (OTC) commercially available herbal flea sprays do not tend to have action beyond 1-3 days.
It is not recommended to use any products containing diatomaceous earth because, when inhaled, it is associated with lung damage.
What works for you?