FUNGOUS DISEASES. 125 



show evidence of the disease. In case the germs 

 have invaded the stem (as shown by the blackened 

 vessels at the junction of diseased leaf and stem) 

 the entire plant should be uprooted and destroyed. 

 This destruction should be by fire or deep burial. 



No plants of kale, wild mustard or other related 

 weed which may harbor the disease should be 

 allowed to grow in or near the cabbage field. 



