Effect of selected treatments for glyphosate substitution in the chemical weed control of Persian lime (Citrus latifolia Tanaka)

Resumen

Objective: To determine the effectiveness of selected treatments for weed control compared to glyphosate in a Persian lime plantation.

Design/methodology/approach: The experiment was established in Ignacio de la Llave, Veracruz, in August 2024. A randomized complete block design with six treatments and four replications was used: glyphosate at 907.5 g ha⁻¹, diuron + paraquat at 1,600 + 500 g ha⁻¹, indaziflam + paraquat at 75 + 500 g ha⁻¹, indaziflam + glufosinate-ammonium at 75 + 300 g ha⁻¹, bromacil/diuron at 1,600/1,600 g ha⁻¹, and a control with no application. Weed control was evaluated at 10, 20, 30, 40, and 50 days after application (DAA). Results: At 50 DAA, the most effective treatments for controlling Ruellia ciliatiflora Hook were indaziflam + paraquat at 75 + 500 g ha^-1, bromacil/diuron at 1,600/1,600 g ha^-1, and indaziflam + glufosinate-ammonium at 75 + 300 g ha^-1. Paspalum dilatatum Poir was effectively controlled with bromacil/diuron at 1,600/1,600 g ha^-1 and diuron + paraquat at 1,600 + 500 g ha^-1. The best treatments for complete weed control were bromacil/diuron at 1,600/1,600 g ha^-1 and indaziflam + paraquat at 75 + 500 g ha^-1.

Limitations on study/implications: The effectiveness of the evaluated treatments may vary depending on the weed species present. Findings/conclusions: Bromacil/diuron at 1,600/1,600 g ha^-1 and indaziflam + paraquat at 75 + 500 g ha^-1 can be used as alternatives to glyphosate for weed control in Persian lime plantations.