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Abstract

Assure [2-[4-[(6-chloro-2-quinoxalinyl)oxy]-phenoxy] propionic acid, ethyl ester], (formerly DPX-Y6202) is a new post-emergence herbicide for the selective control of annual and perennial grasses in broadleaved crops. It was evaluated in a wide range of broadleaved field crops, including vegetables, on different soil types and seasons in Trinidad and showed excellent activity against grass weeds including Brachiaria spp., Cvnodon dectylon, Digitaria spp., Eleusine indica, and Paspalum spp, None of the herbicide treatments caused any apparent damage to crops or significant taints in crop products. Annual and perennial grasses were controlled by rates between 0.05 to 0.1 kg a.i ha-1. ----- Un nuevo herbidda de post-brote-Assure- [2-(4-( (6·cloro-2-quinoxalinyl) oxyj-phenoxyj-acido propionlco, ester etilfcoJ, (anteriorrnente, DPX-Y6202), sirve para el control selectivo de hierbas anuales y perennes, en cultivos de hojas anchas incluyendo, verduras y en una variedad de suelos y estaciones, a la vez mostrando tener una potencia excelente contra las hierbas de pas to, incluyendo entre elias la Brachia ria spp., Cynodon dectylon, Digitaria spp., Eleusine indica y Paspalum spp. Ninguno de los tratamientos con herbicidas, causa daftos apparentes a los cultivos o descoloraciones en los productos de cultivo. Los pastes anuales y perennes fueron controlados por tazas entre los 0.05 a O.lkg a.i. ha-l.

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