Hello! I'm from Louisville, Kentucky, and I've just started raising Monarch caterpillars. One of my dad's friends at work raises them, and she gave me one to take care of. It was hard to find milkweed, since we weren't sure what it looked like, and she said it looks different from the ones in the pictures you'd see on the internet, but we found a bunch of leaves, and s/he seemed to find the right ones to eat, so we've been giving him/her them.
Just a few minutes ago, I found another, wild Monarch cat on the side of the road. Figuring that's not a safe place to stay , I picked up the Milkweed s/he was on, and some nearby, and brought them home. However, it seems I also brought home Aphids that were on the cat's leaf.. Should I be worried? I know they just eat plants, but could they hurt her/him somehow?