I hope someone can advise me on this. I have three ficus trees in the fenced-in yard where Don Juan and Zerlina play (supervised). About a week ago, Don Juan started eating the dead ficus leaves! I say NO! and take him back in the house when he does this, but he is so crazy about it that he will dash out the door to his favorite pile when I come home from work. I'm really concerned, especially after checking online and finding that ficus is poisonous to dogs.
Zerlina chases bugs in and around the dead leaves, but only eats green stuff.
Don Juan and his sister have food, treats and a nice pot of cat grass inside. I'm renting, so removing the trees isn't an option.