Dr. T's Snake-A-Way Snake Repelling Granules will keep those pesky snakes away when sprinkled around homes, cabins, trailers, tents and more. With greater than 91% repellency rate for rattlesnakes and garter snakes, Snake-A-Way is a powerful snake repellent solution that works by temporarily disrupting the snake's sensory receptors. This disorientation causes the snake to slither away unharmed, in search of fresh air. The formula starts working immediately after application. When odor becomes faint, simply reapply.