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
Jerry Brust, IPM Vegetable Specialist, University of Maryland; jbrust@umd.edu It is odd that we would have a couple reports of an unusual disease of brassicas turn up in the same week, but we did. Clubroot, caused by Plasmodiophora brassicae, is… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Plantings for late summer and fall harvested vegetables will be underway in the next few weeks. Timing these plantings can be a challenge, especially where multiple harvests are needed. Plantings from early… Continue Reading
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
