Squirrels have only gone after sunflower seeds in our garden, which is why I don't grow them anymore. They climb fences, chew through netting, so I'm thinking chicken wire cages or tunnels? I also heard that cayenne sprinkled in seed will deter them from stealing bird seed, but it can be nasty if it gets into an animal's eyes, so some would have a problem with that. On the other hand, some would have a problem with killing them. It may be too late, as they seem to have acquired a taste for your greens, but sprinkling them with wood ash may make them unpalatable, and hopefully could be rinsed off completely enough that they would still be appealing to you! Hope someone else has a better idea.
