- I have a family of antechinuses living with me on the northern bank of the Hawkesbury River near Wisemans Ferry (Dharug National Park) and I'm wondering if there is some natural or harmless repellant I can employ for cupboards and nooks where I routinely find their scat? My latest experiment is naphthalene flakes but I don't much like the smell either! Pepper? Cayenne? Any ideas gratefully appreciated!