Gordon Johnson, Retired Extension Specialist; gcjohn@udel.edu, Emmalea Ernest, Extension Fruit & Vegetable Specialist; emmalea@udel.edu As we move into cole crop production season, pay attention to factors that can cause physiological disorders in broccoli, cabbage, and cauliflower. Managing nutrients and irrigation to… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu There has been an increase in consumer interest in sprouting broccoli (also known as baby broccoli), Gai Lan (Chinese broccoli), Gai Lan x broccoli crosses (broccolini), and sprouting cauliflower (caulilini, Asian sprouting… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu In last week’s issue, sulfur, boron, and calcium deficiencies of cole crops such as tip burn were discussed. The following are other disorders that may occur in these crops. Hollow Stem in… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Apart from recommended NPK fertility programs, growers of cabbage, broccoli, cauliflower, Brussels sprouts, kale, and collards need to pay attention to sulfur, calcium, and boron in their cole crop fertility programs.… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Calcium Deficiency Calcium deficiency is most commonly seen as tipburn of cauliflower, cabbage, and Brussels sprouts. Chinese cabbage (Napa cabbage) is also susceptible to tipburn. This problem can cause severe economic losses.… Continue Reading
