How to stop possums eating the fruit and veg in my garden?

[NinkyNonk]

I live near a park and the possums have a tree -tree route to the garden. THey stripped my strawberry plant, pulled up all the young onions, ate the pears and tomatoes, the list goes on... who has a good way to stop them?

 

[Puppy]

Could you not put wire net over plants