One way is to put down something that stinks - mothballs, tabasco sauce, hunter's scents like fox urine - which need renewal after a rain. I've been told that human and pet hair from the barber shop and grooming shop work. I've had good results by planting a close spaced row of daffodils around the garden. The other plants have a chance to get old and bitter before the daffodils die back. But that doesn't help this year.

I heard a recipe at a local garden centre for just your problem. I haven't tried it myself yet but I need to because rabbits are eating my plants.

Boil 2 gallons (Canadian) of water then remove from heat. Add 7 Rhubarb leaves to the water, cover, and let steep over night. Strain the mixture well the next day and spray on plants. This includes edibles such as tomato plants.

Apparently there is an acid in the leaves that keeps all sort of animals and pests away.

Good growing!