The best way to treat for fleas and ticks is to use the drops on the animal itself. I use Frontline. The only non chemical flea and tick control is diatomaceous earth. Diatomaceous earth is like shards of glass on amicroscopic level. It cut the insects and they die. It is harmless to humans and animals when used on the lawn. Here’s a link to an article about using diatomaceous earth for fleas and ticks. http://www.ehow.com/how_2070717_rid-fleas-yard-naturally.html Remember fleas and ticks don’t like the hot, sunny areas of you lawn. They lurk in the cooler, shady areas so focus your efforts there.