Post-emergent herbicides to control goose grass (Eleusine indica L.) in pre-tillering and tillering stages

Tejada J.L.; Barroso A.A.M.; Solis-Rosas-Diaz L.F.; Alvarado-Huamán L.; Silva E.; da Costa Aguiar Alves P.L. · Revista U.D.C.A Actualidad and Divulgacion Cientifica (2024) · DOI: 10.31910/rudca.v27.n1.2024.2361

Resumen

Eleusine indica is difficult to control with post-emergence herbicides due to the short interval between emergence and tillering, which control is more limited. Furthermore, the emergence of resistant biotypes motivates research on this type to find more options for chemical control. The objective of this work was to evaluate the efficiency of post-emergence herbicides in the goosegrass control in two phenological stages. The work was carried out in pots in a completely randomized design with eleven herbicides applied in two experiments: one with plants of four leaves (pre-tillering) and another with plants of eight leaves (in tillering). Visual control notes were assigned at 7, 14, and 21 days after application, collecting the aerial part of the plant in the last evaluation to obtain the dry weight. With these data, variance analysis and means comparison were performed using Tukey's test at a significance level of 0, 05. As a principal result, pyroxsulam, mesotrione, and nicosulfuron controlled less than 80 % of the four-leaf population. At tillering, pyroxsulam, mesotrione, nicosulfuron, and tembotrione showed less than or equal to 65 % of control. Regardless of phenological stage, clethodim, haloxyfop, glufosinate ammonium, glyphosate, paraquat, indaziflam, and ametrine were effective, with more than 88 % of control of the species.

Instituciones: Universidad Nacional San Luis Gonzaga; Universidad Nacional Agraria La Molina