Squirrels munching eggplants | Plant Pests | Commercial Hydroponics farming

Hi,

I have been having issues with squirrels chewing away the brinjals. I tried covering the veggies with ziplock covers and they aren't preventing them from being eaten away. Please suggest me some tried and tested methods that actually work. I searched and found that sprinkling cayenne pepper or pouring castor oil mixed with water are a few ways. Has anyone tried them.

If this keeps happening, my wife suggests me not to keep eggplants for a few months, so the pests stay away from the garden.