Then spread every three months or when you notice fleas. Use Nematodes if it is too wet and the Diatomaceous Earth is getting washed into the ground. The nematodes are active for one month. Then spread every 3-6 months or when you notice any fleas. Flea Busters guarantee no fleas for one year.
Advantage Apply liquid once a month.
4 FrontLine Spray your dog once every 3 months. 5 Program Give your dog a pill once a month. If your yard is infested with fleas I strongly recommend that you apply diatomaceous earth or Nematodes to your yard. If you have a great amount of fleas in your yard, products applied directly to your dog will only work at their most limited capacity. It is crucial that you treat your yard, your house, and your dog simultaneously when you begin.