It had to happen sooner or later, though I was hoping it would be later. A pest has found our broccoli and cabbage. This is what the damage looks like
This is the culprit, the dreaded cabbage worm
And this is the cure-
BT, short for Bacillus thuringiensis, is a beneficial bacteria that can also be found under the trade names, Dipel and Thuricide. BTcan be used as an organic pesticide by mixing with water and applied to the underside of the plant leaves. Several applications are advised. The following diagram courtesy of Abbott Laboratories shows BT in action.