Management strategies for Anredera cordifolia in coffee culture

ABSTRACT Coffee plantations installed at high altitudes and near forested areas have been highly infested with Anredera cordifolia. The objective of this work was to evaluate the effectiveness of different pre- and post-emergence herbicide treatments on A. cordifolia after mechanical mowing. A field experiment was carried out in a coffee plantation with natural infestation of A. cordifolia in a completely randomized design with a split-plot scheme and four replicates, in which the main plot an herbicides application and the subplot was the days after the initial application (DAI). The treatments were as follows: saflufenacil + glyphosate (70 + 960 g a.i. ha-1); chlorimuron + glyphosate (80 + 960 g a.i. ha-1); metsulfuron + glyphosate (6 + 960 g a.i. ha-1); flumioxazin + glyphosate (25 + 960 g a.i. ha-1), and glyphosate (960 g a.i. ha-1); with sequential application of glyphosate (960 g a.i. ha-1); glyphosate + indaziflam (960 + 75 g a.i. ha-1); indaziflam (75 g a.i. ha-1); and a control without herbicide application. Mechanical control, followed by the application of the treatments flumioxazin + glyphosate and metsulfuron + glyphosate in the first application and sequential application of indaziflam, proved to be effective. Control of this weed should be based on the removal of its plant residues from the field to reduce the regrowth and germination of aerial tubers.

摘要：高海拔且邻近林区的咖啡种植园极易受到落葵薯（Anredera cordifolia）的侵染。本研究旨在评估机械刈割后，不同芽前及芽后除草剂处理对落葵薯的防除效果。本研究在自然侵染落葵薯的咖啡种植园中开展田间试验，采用完全随机裂区设计，设置4次重复；其中主区为除草剂施用处理，副区为初始施药后天数（DAI）。药剂处理如下：氯氟草醚（saflufenacil）+草甘膦（glyphosate）（70 + 960 g a.i. ha⁻¹）；氯嘧磺隆（chlorimuron）+草甘膦（glyphosate）（80 + 960 g a.i. ha⁻¹）；甲磺隆（metsulfuron）+草甘膦（glyphosate）（6 + 960 g a.i. ha⁻¹）；氟烯草酸（flumioxazin）+草甘膦（glyphosate）（25 + 960 g a.i. ha⁻¹）；单剂草甘膦（glyphosate）（960 g a.i. ha⁻¹）；序贯施用草甘膦（glyphosate）（960 g a.i. ha⁻¹）；草甘膦+茚嗪氟草胺（indaziflam）（960 + 75 g a.i. ha⁻¹）；单剂茚嗪氟草胺（indaziflam）（75 g a.i. ha⁻¹）；以及不施用除草剂的空白对照。试验结果表明，机械防控结合首次施药采用氟烯草酸+草甘膦、甲磺隆+草甘膦处理，以及序贯施用茚嗪氟草胺的方案，均表现出良好的防除效果。该杂草的防控应基于田间植株残体的清除，以减少地上块茎的萌发与再生。