Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Variable June weather often creates conditions favorable for blossom end rot in susceptible crops, with tomatoes and peppers being the most affected. In most years, there is a transition point in June… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Several disorders of potatoes are associated with localized calcium deficiencies in the tubers. This includes internal rust spot, internal browning, heat necrosis, hollow heart, and bruising. Calcium is a component of plant… 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
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Blossom end rot (BER) is showing up again this year in peppers and we expect it to be prevalent in tomatoes because of the recent hot weather. BER is a disorder where… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Calcium dominates exchange sites in soils and is rarely deficient. However, a number of calcium disorders can affect crops, even in well limed soils including: Blossom end rot in tomatoes, peppers, and… Continue Reading
