Non Pathogenic Disorders of Cabbage 
As part of Cornell University’s Vegetable MD Online, this website includes photos to help growers identify the disorder afflicting their cabbage. Information on each disorder includes why it occurs and how to prevent it.

Calcium and Boron Deficiencies in Brassica Crops
University of Delaware Extension factsheet

Edema (Oedema) in Vegetables, including cabbage
Factsheet from the University of Delaware Extension.

Tipburn, Brassicas
Factsheet from University of Massachusetts Vegetable Extension Program.

Reviewed and updated by Jeanine Davis on 7/18/2022.