The sourgrass (Digitaria insularis) characteristics of aggressiveness and the existence of glyphosate resistant biotypes puts this weed in evidence in the Brazilian agricultural scenario In this regard, the present study aimed at the development and evaluation of strategies for the management of sourgrass (Digitaria insularis) resistant to glyphosate in out-of-season corn crop. The use of paraquat in pre-harvest burn-down of soybean followed by the application of clethodim two days after harvesting soybeans provided flexibility to choose the herbicide used as post-emergent in corn.
Strategies to control of sourgrass (Digitaria insularis) glyphosate resistant in the out-of-season corn crop
GemelliA, Oliveira JuniorRS, ConstantinJ, BrazGBP, JumesTMC, GhenoEA, RiosFA, et al. Strategies to control of sourgrass (Digitaria insularis) glyphosate resistant in the out-of-season corn crop. Revista Brasileira de Herbicidas 2013;12(2):162-70.
Gemelli,Alexandre; Oliveira Junior,Rubem Silvério de; Constantin,Jamil; Braz,Guilherme Braga Pereira; Jumes,Talita Mayara de Campos; Gheno,Eliezer Antonio; Rios,Fabiano Aparecido; Franchini,Luiz Henrique Morais. Strategies to control of sourgrass (Digitaria insularis) glyphosate resistant in the out-of-season corn crop. Revista Brasileira de Herbicidas, v. 12, n. 2, p. 162-170, Aug. 2013.
Gemelli,A., Oliveira Junior,R.S. , Constantin,J., Braz,G.B.P., Jumes,T.M.C., Gheno,E.A., Rios,F.A., & Franchini,L.H.M. (2013). Strategies to control of sourgrass (Digitaria insularis) glyphosate resistant in the out-of-season corn crop. Revista Brasileira de Herbicidas,12(2), 162-170.
Gemelli,Alexandre and Oliveira Junior,Rubem Silvério de and Constantin,Jamil and Braz,Guilherme Braga Pereira and Jumes,Talita Mayara de Campos and Gheno,Eliezer Antonio and Rios,Fabiano Aparecido and Franchini,Luiz Henrique Morais. Strategies to control of sourgrass (Digitaria insularis) glyphosate resistant in the out-of-season corn crop. Revista Brasileira de Herbicidas [online]. 2013, vol. 12, n. 2, [cited 2026-03-06], pp.162-170. Available from: <https://www.weedcontroljournal.org/article/strategies-to-control-of-sourgrass-digitaria-insularis-glyphosate-resistant-in-the-out-of-season-corn-crop/>. ISSN .
Figure 1
Weed phytosociology in the 2018-2019 (a) and 2019-2020 (b) growing seasons, evaluated 43 and 32 days after treatment application, respectively, based on different pre-emergent treatments in cassava cultivation. Júlio de Castilhos, 2018-2019 and 2019-2020.