Vegetables from the "organic" section of the supermarket are generally a little more expensive than other vegetables, but are well worth the extra expense, for they can be a rich source of microlepidopterous larvae. I bought the caterpillars of the Diamondback Moth with some Brussels sprouts, which were riddled with small round holes and made generally inedible by the caterpillars. The moth is known throughout the world by those who grow cabbages and related vegetables.