Q: Something is eating my collard plants. Little tiny caterpillars are making
holes in the leaves.

A: You have cabbage worms. Despite their name, cabbage worms attack
collards, cabbage, kale, Brussels sprouts and broccoli plants anytime you plant
them, spring, summer, or fall. Planting early or planting late doesn’t seem to
make much difference. The best way to control them is to use an organic spray
that contains Bacillus thuringiensis (abbreviated B.t.) on the leaves when you
plant. Repeat every seven days.