Insect and Spider Identification: Possible parasite cocoons with cabbbage caterpillars, 1 by sallyg

sallyg wrote:
I have been overrun with the Cross striped Cabbageworms. Recently I found a couple clusters of tiny cocoons, in loose silk nests, under the leaf. The cocoons are much tinier than the mature caterpillars size suggests. Yesterday I found two caterpillars, possibly under attack from grubs. Am I thinking right, these are grubs of a parastic (wasp?) on these caterps? Since coming tobthis conclusion, I left these latest unmolested so they can do their thing.