Three expts. were conducted at Baton Rouge, La. from 1939 to 1941, inclusive, to determine the relative abundance of the cabbage looper, Autographa brassicae, the imported cabbage worm, Picris rapae, and the larva of the diamondback moth, Plutella maculipennis, on 8 types of cole crops, namely, green cabbage, red cabbage, collards, cauliflower, kale, broccoli, brussells sprouts, and kohlrabi. The number and species of caterpillars and pupae on 20 plants per plot were recorded at weekly intervals. In all 3 expts., red cabbage was more heavily infested with caterpillars than was the green cabbage. Broccoli and collards supported the largest total populations. General observations indicated that the number of caterpillars supported by the plants was largely due to factors other than the type of Brassica, and consequently that the relative abundance of the caterpillars does not indicate accurately the host preference. No outstanding resistance to cabbage caterpillars was shown by any of the types of Brassicae tested.