Have you tried replica rodent predators? My friend had a rodent problem in his garden and he managed to mostly eliminate it by getting a replica plastic owl and some replica plastic snakes. It seems bizarre but it worked for him.. Apparently they are very effective in scaring away the rodents. Good luck with your crop!
Thank you. I should try some out. Maybe it would protect some areas. so far, I have killed about 25 rats and 5 or 6 gophers. And there are many more...
But putting the snakes around the tree producing at the time might work...
I love it! A pacifist approach to pest control :)