Cynodon dactylon (bermudagrass) is the most important weed in sugarcane crops in Tucumán. The aim of this study was to evaluate the weed control efficacy (CE) of topramezone alone and in a tank-mix with atrazine on bermudagrass plants obtained from a single-node stem cutting, simulating the condition of the weeds after a mechanical control. The effect of different doses used in a sugarcane crop was also evaluated. Topramezone (33.6 g a.i./ha) + atrazine (0.9 kg a.i./ha) was the treatment with the best CE on bermudagrass, lower aboveground dry weight of the weed at 43 days after treatment, and absence of shoots. This treatment did not decrease crop yield when compared to the control. The efficient control of bermudagrass, as well as the absence of crop injury, permits the use of topramezone, in combination with atrazine, as a new chemical alternative for the post-emergent control for this and other weeds.

中文翻译：

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Topramezone：在阿根廷的甘蔗中注册的新除草剂，用于在阿根廷图库曼省的犬牙act的芽后处理

狗牙根（bermudagrass）是图克曼（Tucumán）甘蔗作物中最重要的杂草。这项研究的目的是评估单独使用托普兰和在与阿特拉津的罐混物中对单节茎切割获得的百慕大草的杂草控制功效（CE），模拟机械控制后的杂草状况。还评估了在甘蔗作物中使用不同剂量的效果。Topramezone（33.6 g ai / ha）+阿特拉津（0.9 kg ai / ha）是在百慕大草上具有最佳CE，处理后43天杂草的地上干重较低且无芽的处理方法。与对照相比，该处理不会降低作物产量。有效地控制百慕大草，并且没有农作物伤害，因此可以将托普美zone与阿特拉津，