It's certainly not elegant, but this netting I've draped over my vegetable bed is working to keep the possums out.
It's a constant battle of wills - me versus the possums. I plant veggies and herbs in this bed so I can eat them; not to feed the local possums.
Possums are a protected native species in Australia and they have invaded city areas (unfortunately) and made very comfortable lives for themselves in the backyards of Sydney.
After I discovered they had munched my spinach and parsley to the ground and taken large mouthfuls of the silverbeet on Saturday night, I erected this most unattractive structure. The mesh is big enough to allow bees in and out. This is very important in a garden!
Please cross your fingers for me that this works.