Why let those Autumn Olive fruits (Elaeagnus umbellata) go to the birds? If you're thinking of trying to stem the wave of Autumn Olive seedlings in your town, below are a couple of recipes that call for those juicy, red fruits! (Feel free to send samples.) There are even possible cancer-fighting benefits to consuming them, because they contain large quantities of the antioxidant lycopene. For those of you having problems with full-grown trees, the roots make lovely walking sticks.Wild Plants I Have Known…and Eaten," a book by Russ Cohen. It features chapters about several common invaders, including autumn olive and Japanese knotweed.