Managing Glyphosate Resistance

Roundup Ready® genetic traits  allow the use of glyphosate (the generic active ingredient in Roundup®) for broad spectrum weed control.

This means that a broad range of weeds can be controlled post-emerge, and without critical timing during the hectic planting season. There is no need for incorporation. Additionally, the glyphosate applications may be less expensive than traditional herbicides, even when the cost of the genetic trait is considered.

However, as we have previously reported, some weeds are becoming resistant to glyphosate, and this is causing concern in the industry.

To manage resistance, you should avoid using reduced rates of glyphosate, and you might consider the industry sponsored "212" method. The "212" method means that you allow a maximum of two glyphosate applications on any one field over a two year period.  When not using glyphosate, employ other means of weed control, including alternative herbicides and cultivation.

To learn more about following RR corn with RR soybeans, click here. 

Resistance must be managed, but Roundup Ready® still makes sense for many farmers.