Use of clomazone associated with dietholate safener for the management of weeds in wheat crop

Authors

DOI:

https://doi.org/10.5965/223811711712018002

Keywords:

Raphanus, Triticum, Triticum aestivum, Lolium, Lolium multiflorum

Abstract

The intensive and repeated use of the chemical control method in the wheat crop selected populations of turnip (Raphanus raphanistrum and R. sativus) and ryegrass (Lolium multiflorum) resistant to herbicides, especially from the groups of ALS‑, ACCase‑ and EPSPS‑inhibitors. It is important to rotate the herbicide mechanisms of action to manage populations of resistant weeds, both in burndown and after planting. Thus, this work aimed to assess the effectiveness of the herbicide clomazone in the control of ryegrass and turnip associated or not to dietholate safener protection in wheat crop. The first experiment was conducted in a completely randomized design (CRD), with four replications. Dietholate doses (0, 120, 240, 360 and 480 g per 100 kg of seeds of wheat cultivar TBIO Itaipu) were associated to clomazone doses (0, 198, 396 and 594 g ha‑1) sprayed pre-emergence. The second experiment comprised infested and weeded control treatments, the pre-emergence application of clomazone + dietholate (396 g ha-1 + 240 g per 100 kg seed) and post-emergence application of iodosulfuron-methyl (5 g ha-1) or pyroxsulam (18 g ha-1). The treatment of wheat seeds with dietholate did not affect the control of ryegrass and turnip by clomazone when applied pre-emergence. Clomazone, even when sprayed at low doses, presented ryegrass control above 80% and can be used to control resistant biotypes of this weed to EPSPs‑, ALS‑ and ACCase‑inhibitors. Iodosulfuron-methyl and pyroxsulam showed excellent control of turnip and satisfactory control of ryegrass.

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Author Biographies

Maicon Fernando Schmitz, Federal University of Fronteira Sul

Aluno de Agronomia da UFFS, Câmpus Erechim

Leandro Galon, Federal University of Fronteira Sul

Engenheiro Agronomo pela FAEM/UFPEl, Mestre em Fitossanidade pelo DFS/FAEM/UFPel, Doutor e Pós Doutor pelo DFT/UFV, e atual professor da área de Herbologia da UFFS.

Bruna Piovesan, Federal University of Fronteira Sul

Aluno de Agronomia da UFFS, Câmpus Erechim

Matheus Freitas de Souza, Federal University of Viçosa

Doutorando de Fitotecnia da UFV.

Luciane Renata Agazzi, Federal University of Fronteira Sul

Aluno de Agronomia da UFFS, Câmpus Erechim

Cesar Tiago Forte, Federal University of Fronteira Sul

Mestrando do Programa de Pós-Graduação em Ciência e Tecnologia Ambiental da UFFS, Câmpus Erechim

Gismael Francisco Perin, Federal University of Fronteira Sul

Eng. Agr. Dr. e atual Professor da UFFS, Câmpus Erechim

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Published

2018-03-16

How to Cite

SCHMITZ, Maicon Fernando; GALON, Leandro; PIOVESAN, Bruna; SOUZA, Matheus Freitas de; AGAZZI, Luciane Renata; FORTE, Cesar Tiago; PERIN, Gismael Francisco. Use of clomazone associated with dietholate safener for the management of weeds in wheat crop. Revista de Ciências Agroveterinárias, Lages, v. 17, n. 1, p. 2–11, 2018. DOI: 10.5965/223811711712018002. Disponível em: https://www.revistas.udesc.br/index.php/agroveterinaria/article/view/8049. Acesso em: 11 nov. 2024.

Issue

Section

Research Article - Science of Plants and Derived Products

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