Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Bolting is the term used for flower stalk formation in vegetables. Bolting response may be related to temperature, daylength, or a combination. Bolting in spinach, lettuce, and some radishes (oriental types) will… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Cauliflower, cabbage, Brussels sprouts, Chinese cabbage (Napa cabbage) and lettuce are susceptible to tipburn. This problem can cause severe economic losses. Tipburn is a breakdown of plant tissue inside the head of… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Pea planting has progressed significantly this week and potato planting is well underway. Timing of spring-planted vegetables will depend on soil conditions, soil temperatures, and long-term weather forecasts. We currently are in… Continue Reading
Jerry Brust, IPM Vegetable Specialist, University of Maryland; jbrust@umd.edu Southern blight is a fungal disease that is most common in the tropics and subtropics, but also is found in the SE United States in the summer. In Maryland we usually… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu and Emmalea Ernest, Associate Scientist – Vegetable Crops; emmalea@udel.edu Climate change has the potential to affect fruit and vegetable production as temperatures increase. Climate data from the region has shown a steady… Continue Reading
