Sneaky Green Caterpillar

[Monica BooM]

Can someone please help me, I've been all over the web and back again with no answer.
I'm breeding Cabbage Whites, but in the tank is one green caterpillar, dont know how it snuck in.
Its completely green, completely smooth, but the problem is that because its only 1cm long, I cant tell what it is.
Its now just sitting at the bottom of the tank and I'm worried it doesnt eat cabbage leaves.
Please help!!!

[Anders152]

Hi, did you hatch the caterpillars from eggs you found and are they Large Whites or Small Whites? Maybe you have lots of Large White larvae and one Small White larva (they're green) which was a stray egg. Bizarre!

[Monica BooM]

thanks for the reply, helped alot. does that mean i have both large and small cabbage whites? can they live together ok?

[Anders152]

Sounds like it as large whites lay eggs in big groups and small whites lay them one at a time under a leaf so it could easily have gone unnoticed. They both love cabbages so should be fine! The small one might want to hide a bit more though as it relies more on camouflage than the large white which is poisonous to predators and doesn't have to bother hiding! Good luck and keep me updated

[Monica BooM]

the green ones are tiny, only 3mm, and the small cabbage whites are 2 inches long. u sure they wont get eaten or stepped on?

[Anders152]

If they're in a tank they won't get eaten. Sounds like the large ones are fully grown and will pupate soon anyway.