Blackheart of Celery September 14, 2017 - From Issue: 636 By: Wenjing Guan Read More Blackheart of celery is a physiological disorder that causes significant crop loss in major celery production areas. It is characterized by the breakdown of young leaf tissues in the heart[Read More…] Article Categories: Greens and Salad Crops Celery Article Tags: Soil Fertility and Fertilizers