Kale is not without it's ravenous enemies. Just this afternoon I noticed a plague of green caterpillars with near perfect camouflage! I'm fairly certain what I have here is the formative vessels of the White Cabbage Butterfly. Once you spot one of them all of a sudden they are everywhere. So far I have tried spraying with Spinosad and jumping up and down a bit. If that doesn't work, my next plan will involve bacon, butter and parsley, taking care to wash the spray off the little buggers first.