Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Leaf curling, cupping and rolling in vegetables can be caused by virus diseases, aphid infestations, herbicides and growth regulators. We are currently finding physiological leaf roll and leaf curling due to exposure… Continue Reading
Jerry Brust, IPM Vegetable Specialist, University of Maryland; jbrust@umd.edu Over the last few weeks there have been many reports about tomato leaves curling, sometimes severely, in growers’ fields. It starts with upward cupping at the leaf margins followed by inward… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Leaf cupping and rolling in vegetables can be caused by virus diseases, aphid infestations, herbicides and growth regulators. However, late spring and early summer is the time of the year that we… Continue Reading
