Keep your fields clean with multiple effective sites of action.

When it comes to fighting weed resistance, you have a number of tools at your disposal to help you come out on top. Management strategies should be customized based on the characteristics of a particular field. What might work for one grower may not be the best approach for another. The same can even be said for 2 fields managed by the same grower. As a result, it’s important to evaluate and modify programs as needed to effectively combat weeds.

One method that all growers should incorporate for maximum weed control is using multiple effective sites of action. Compared to other strategies, such as crop rotation, selecting herbicides with multiple effective sites of action will preserve chemistries and delay resistance more effectively. Although crop rotation is an easy method to add product diversity to a field, many herbicides applied for different crops use the same effective sites of action. It’s important to note herbicide groups and vary them, even when switching from corn to soybeans or vice versa.

Syngenta research has found that using programs with up to 4 effective sites of action can delay resistance by up to 2 decades.

For soybeans, we recommend a program with a preemergence application of Boundary^® 6.5 EC, BroadAxe^® XC or Prefix^® herbicides followed by Tavium^® Plus VaporGrip^® Technology herbicide. These pairings will provide 3 effective sites of action.

Corn growers can use Acuron^® or Acuron Flexi corn herbicides. Acuron delivers 5 to 15 more bushels per acre than competitors*. Both Acuron and Acuron Flexi can be followed by Halex^® GT with either atrazine or dicamba. This program provides numerous effective sites of action, depending on the combination of products you choose.

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*When applied preemergence and at full label rates. Yield advantage range based on 2016 Syngenta and University trials comparing Acuron to Corvus^®, Resicore^®, SureStart^® II and Verdict^®. For more information on Acuron versus an individual product, ask your Syngenta representative.

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