Gary Bergstrom, Department of Plant Pathology and Plant-Microbe Biology, Cornell University
Chlorotic and necrotic spots near the tips of leaves of winter wheat (Feekes GS 5, first stem node) were observed in a field in western New York. The symptoms occurred in the portion of the field that followed cabbage but not in the portion that followed soybean, and there was a distinct line between injured and non-injured wheat according to previous crop.
Checking the grower’s records revealed that the previous cabbage crop was treated with Goal 2XL (oxyfuoron) herbicide in 2013 and then winter wheat was planted in rotation sooner than the required 10 month treatment-to-planting interval specified on the Goal label.
We believe the symptoms on wheat leaves are the result of injury by oxyfuoron. It appeared that the affected wheat plants would grow out of the herbicide injury.
