I have citrus trees on my patio, and the Giant Swallowtail caterpillars have chosen my Ruby Red Grapefruit.tree & eaten the leaves bare. The fruit is doing fine. (It's true they do look like bird poo! ) 😏 🐛

kjt543, thank you for hosting the giant swallowtail butterfly. I've watched them eat the leaves from the citrus trees (for years) but never have they damaged the trees or caused problems with the fruit.