Opossums are attracted to food scraps and can easily knock over unsecured cans.
Avoid leaving pet food outside, and make sure to pick up any fallen fruit from trees
Opossums need water to survive. Remove standing water sources from your yard.
Opossums look for shelter in brush piles, under decks, and in crawl spaces.
A sturdy fence can help keep opossums out, but they are good climbers and diggers.
There are various commercial repellents available that can discourage opossums.