TROPICLEAN NATURAL FLEA & TICK SPRAY FOR HOME to kill fleas and ticks by contact TropiClean natural Flea & Tick Home Spray is guaranteed to kill fleas and ticks by contact. This natural essential blend contains some of nature's most powerful pest-fighting ingredients, maximized with lemongrass and sesame oil, for long-lasting effects. Our Home Spray is safe enough to use around dogs and cats.