The impact of pelargonic acid — a fatty acid that occurs naturally in plants and animals and is found in many foods — on weed control efficacy, crop injury, and squash yields of yellow squash has been the focus of a new study. “This research determined that a sequential postdirected application of pelargonic acid at 10-lb/acre in 40-gal/acre can consistently produce satisfactory weed control with low crop injury to produce weed-free equivalent squash yields,” the lead author said.