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ID: ALA3044556
Journal: Crop Prot
Title: Managing weeds with drip-applied herbicides in tomato
Authors: Santos BM, Gilreath JP, Lugo MdL, Rivera LE.
Abstract: Field trials were conducted on heavy soils in Puerto Rico and the Dominican Republic to compare the efficacy of herbicide delivery methods, and to examine the performance of herbicides on weed control in tomato (Lycopersicon esculentum Mill.). Herbicides were applied either with a piston-pump backpack sprayer or through drip lines. Herbicide treatments were a non-treated control, S-metolachlor, napropamide, pebulate, and trifluralin. Effects of the herbicide delivery method were not significant for tomato yield, which indicated that herbicide application through drip lines performed similar to conventional preplant incorporated application. The highest extra-large and total tomato fruit weight were obtained in plots treated with S-metolachlor, representing 75% and 57% increments in yields, respectively. These results suggested that in heavy soils, such as the ones in the two locations in Puerto Rico and the Dominican Republic, application of S-metolachlor through drip lines appears to be an alternative for weed control in tomato fields.