You might try placing row cover or bird netting (both found in garden centers) over your cabbages to catch the leaves. You can prop up the material on stakes (or garden hoops) to either side of the row, if desired, so that the material doesn’t actually touch your crop.
You might try placing row cover or bird netting (both found in garden centers) over your cabbages to catch the leaves. You can prop up the material on stakes (or garden hoops) to either side of the row, if desired, so that the material doesn’t actually touch your crop.