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Efficacy of herbicides in the control of Commelina benghalensis

By: Luiz Leonardo Ferreira, Cassiano Araújo Maia Freitas, Carmen Rosa da Silva Curvêlo, Alexandre Igor de Azevedo Pereira

Key Words: Trapoeraba, Association of herbicides, Sequential application

Int. J. Agron. Agri. Res. 13(2), 15-22, August 2018.

Certification: ijaar 2018 0130 [Generate Certificate]

Abstract

The alternative management to maximize the weed control spectrum without increasing the resistance is the association of different herbicides in the tank, since the isolated control of glyphosate for Commelina benghalensis has not demonstrated efficacy, since it has presented tolerance to this herbicide. Thus, the objective of this study was to evaluate the effectiveness of herbicides in association and possible sequential applications that may lead to new alternatives in the effective control of Commelina benghalensis in no-tillage areas. For that, a randomized block design (DBC) with ten treatments and three replications was adopted. Each experimental unit consisted of an area of 8x5m, totaling 40m2. Herbicide treatments were based on the association of possible herbicides and sequential applications. The application of the herbicides was carried out with research spray maintained at constant pressure by CO2, with bar containing ten model nozzles ADIA 110015 T spaced 0.50 m apart. Evaluations of herbicide efficacy were carried out at 7, 15, 22 and 30 days after application (DAA). At 60 DAA, the percentage of rebreeding of Commelina benghalensis was evaluated. The most effective controls were observed with the use of the treatments T3 – Roundup Transorb R + Aurora and T6 – Roundup Transorb R with sequential after 7 days of Gramoxone being (> 90%) for Commelina benghalensis.

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Efficacy of herbicides in the control of Commelina benghalensis

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Luiz Leonardo Ferreira, Cassiano Araújo Maia Freitas, Carmen Rosa da Silva Curvêlo, Alexandre Igor de Azevedo Pereira.
Efficacy of herbicides in the control of Commelina benghalensis.
Int. J. Agron. Agri. Res. 13(2), 15-22, August 2018.
https://innspub.net/ijaar/efficacy-herbicides-control-commelina-benghalensis/
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