David Owens, Extension Entomologist, owensd@udel.edu Congratulations to Sylvie Childress for correctly identifying the leaf issue as sunscald or sunburn. Everyone else who also guessed correctly will also be entered in the end of year raffle. With the hot, dry, and… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Growers are experiencing quality problems in sweet corn this year related to poor pollination as a result of high heat. This problem is more severe in less stress tolerant varieties and where… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Leaf scald is a physiological disorder similar to necrotic sunburn in fruits and vegetables. It occurs when leaf temperatures rise above a critical level, cells die rapidly, leaving a bleached white appearance.… Continue Reading
Jerry Brust, IPM Vegetable Specialist, University of Maryland; jbrust@umd.edu In the last few weeks several sweet corn fields as well as some watermelon and even a few tomato fields have been found with sulfur deficiencies (Figs. 1 and 2). In… Continue Reading
David Owens, Extension Entomologist; owensd@udel.edu Sweet Corn Fall armyworm is active in the area. Treatment thresholds are 12-15% infested plants. Corn earworm moth counts are very high for this time of year. Complicating the picture is that there is a… Continue Reading
