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For Better Control, Choose Herbicides with Staying Power

December 12, 2019
This agronomic image shows young soybean fields

The record-breaking rains in many parts of the country this year delayed herbicide applications, and we’re expecting a larger-than-normal weed seed bank next year as a result. Choosing herbicides with broad-spectrum control and residual activity will be key for protecting yields.

We know that weeds are damaging because they compete with young crops for vital resources. But it’s important to keep in mind just how quickly this competition can cause damage. The Iowa State University Extension reports that weeds can impact yield potential as soon as they begin to take light, water and nutrients from the crop – and that can happen before you even realize a weed is in your field.

An effective spring burndown, potentially coupled with tillage, will be important to avoid yield-robbing, early-season weed competition in 2020. Then, to keep fields clean, growers should apply 2-pass applications at full labeled rates. This holds true even if weather affects timing again. Remember, early is better than late, but late is better than never!

When evaluating types of herbicides, it’s important to choose ones with broad-spectrum control and residual activity. The right herbicide program will help you stay on top of weeds and avoid spending more money late in the season to clean up escapes.

For dicamba-tolerant soybeans, we recommend Tavium® Plus VaporGrip® Technology herbicide, the market’s first premix residual dicamba herbicide. Tavium has multiple effective sites of action that work against a broad spectrum of broadleaf and grass weeds, and contains built-in residual control to maintain clean fields throughout the season. Through the contact control of dicamba, Tavium controls the weeds you see, and through the residual control of S-metolachlor, it protects crops from the weeds you don’t see yet.

The best fit for Tavium is as an early post-emergent herbicide. It can follow Boundary® 6.5 EC, BroadAxe® XC or Prefix® herbicides in soybeans – along with others. In dicamba-tolerant cotton, it can follow Caparol® 4L or Reflex® herbicides. It targets the toughest weeds, including waterhemp, Palmer amaranth, horseweed (marestail), common and giant ragweed, kochia, morningglory, barnyardgrass and foxtail. Tavium controls 21 different weeds when applied preemergence and 63 weeds as a post-emergent herbicide.

Learn more about stewardship and training requirements for Tavium.

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