Hello Josh As I wrote some time ago, any kind of flour lightly sprinkled on cabbages, will kill the white butterfly caterpillars. Why not try that? If flour kills the cabbage caterpillars, I would expect it to do the same with other kinds. It would be worth a try anyway. It doesn't seem to matter what flour, was told to use ordinary flour but as I don't have that, used cornflour which worked fine. Ina Crossley Auckland New Zealand Where we had the thunderstorm of all thunderstorms a couple of nights ago.