**6. Conclusions**

Among the pesticides, glyphosate is widely used in Brazil and in the world to control weeds in various crops. However, its use should be performed consciously, since there is no significant increase in the amount of weeds resistant to this herbicide. Despite its great use in the country, it presents few reports of resistant weeds than another mode of action of herbicides, such as acetolactate synthase and photosystem II (PSII) inhibitors.

Knowledge of glyphosate characteristics, weed biology, resistance mechanisms, and the production system used that favors the emergence of herbicide-resistant weed biotypes is important to appropriately manage and prevent or delay new cases of resistant weeds in the field.

Crops with glyphosate-resistant transgenic technologies will continue to be important in the future for weed management, and resistant biotypes will continue to be selected. Thus, good agricultural practices are indispensable, and more innovations in technologies are necessary for the future. Therefore, adopting a long-term weed management perspective and integration system for all agricultural practices is of paramount importance to farmers.

**15**

**Author details**

Kassio Ferreira Mendes1

of São Paulo, Piracicaba, SP, Brazil

\*Address all correspondence to: kfmendes@ufv.br

provided the original work is properly cited.

*Current Approaches to Pesticide Use and Glyphosate-Resistant Weeds in Brazilian Agriculture*

\*, Rodrigo Nogueira de Sousa2

1 Department of Agronomy, Federal University of Viçosa, Viçosa, MG, Brazil

3 Department of Chemistry, Federal University of Viçosa, Viçosa, MG, Brazil

2 Department of Soil Science, "Luiz de Queiroz" College of Agriculture, University

© 2020 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium,

and Ana Flávia Souza Laube3

*DOI: http://dx.doi.org/10.5772/intechopen.91872*

*Current Approaches to Pesticide Use and Glyphosate-Resistant Weeds in Brazilian Agriculture DOI: http://dx.doi.org/10.5772/intechopen.91872*
