So Saturday, it was a fairly nice day for March. We were all out in the backyard with the dog, doing some yard work and such. We'd recently gotten him a Seresto collar, which has very handily kept fleas and tick at bay for two years of using them. Mrs. C. picked two deer ticks off him. They likely would have fallen off or died, due to the Seresto collar, but now I'm half afraid to even go out to the back yard to work on shit. Is there any sort of yard treatment we can put down to help fight them off? Take into consideration the fact that our back yard is about a quarter of an acre of open yard area, so it's a pretty decent amount of space that needs treated, with a wooded area on one side. Any suggestions would be appreciated.