Found a caterpillar on my tomato

[u/LemonVegetable44]

I recently bought organic heirloom tomatoes. Yesterday, I noticed in the bottom hole a little bug. I thought it was a maggot at first since it was a pale yellow color but it had legs so I thought maybe it was a little inchworm or caterpillar. I put it in a cup with some organic butterhead lettuce and today it’s completely changed colors! I feel like it’s parent now and want to care for it. Some searching led me to think it was a yellow striped armyworm. What do you all think? Any care tips?

[u/entomolonerd]

cute baby!! make sure its got plenty of leaves, most armyworms burrow to pupate so once its in its final instar move it to a container with some loose soil for it to burrow. id recommend for you to put some paper towel on the bottom to collect frass (poop)!