Using repellents can prevent snakes from entering your lawn.
Ro-pel Snake Repellent. Pet Safe!
Grow Your Own Food
Solar Snake Repeller
Outdoor Pest Repellers
Deck and Porch Living
How to Use Mothballs as Snake Repellent | eHow
Natural Snake Repellent (Any other snake freaks out there? You will not believe this story!)
How to Use Moth Balls as Snake Repellent
Best Snake Repellent | How to Get Rid of Snakes | ChippTips
Favorite Places & Spaces