This is especially true for the cabbage looper and other worms. Generally the insect problem is much greater on summer and fall crops, compared to spring crops. Plant certification ensures freedom from black rot and keeps this problem in check. Also do not enter garden when plants are still wet. All this will help reduce black rot spread.
Some varieties mature uniformly while others are variable.
For this reason some varieties can be harvested in 1 or 2 cuttings while others will require selective cuttings 3 or more times. Once cabbage is cut, move it out of the sun as soon as possible. Steps to Successful Cabbage Production 1. Select a site with well-drained soil. Test soil for fertilizer, lime and nematodes.