Informative article.....but I am with LindaTX. I would kill the caterpillar and all of the wasp eggs it is harboring. Farmers purchase and release them in mass on their crops, and they multiply. Some of those wasp will more than likely be killing our Monarchs and Swallowtails that we care about in the next few weeks by planting their eggs in those caterpillars. Because of the short life of the Monarch the parasite eats their insides. So when it makes it's chrysalis (if it lives that long), there is nothing there to become the beautiful butterfly.
Edited to add a link on the subject.
http://www.butterflyfunfacts.c...