I use FOOD GRADE Diatomaceous earth on all my animals. It works. you can use it in the house, yard, pet exterior, and also put it in their food to control worms! It is natural and non-poisonous! Plus, the animals like being dusted with it because they are getting pets!!
You can even use it in your carpet, within hours it will kill every bug that touches it.
If your neighbor tries it, make sure NOT to use DE designed for pool filters, as this type is harmful to people and pets!
If you search for diatomaceous earth on the net, you will find a wealth of info on it. Can be used for soooo much, even has health benefits for people!
I live near Daytona, and believe me, it even works on sand fleas and fire ants!!