• Crop Protection

Take Care of Early Spring Weeds Before Planting

Close up of a spray nozzle distributing a burndown herbicide.

As you prepare for spring, it’s a good idea to consider a spring burndown herbicide application if winter or spring annual weeds are a problem in your fields. Winter annuals, including marestail, overwinter and resume growing as soon as temperatures warm in the spring. When fields are fit to work, it’s a good idea to tackle these weeds because they often have the competitive advantage over the crops you intend to plant. In addition to stealing water and nutrients from the soil, weeds can create challenges for planting.
Here are some tips to manage weeds so your crops can get a strong start in a clean field.

Scout fields to identify weeds.

Identifying weeds that are most troublesome early in the season can help you plan the most effective spring burndown application. Marestail, in particular, has shown resistance to glyphosate and ALS-inhibitor herbicides. Utilizing other herbicide active ingredients like those in Dimetric® or Dimetric Charged can increase the consistency of marestail control. Both herbicides offer residual benefits, which can help extend weed control to keep fields clean during critical stand establishment. 2,4-D and dicamba are also effective for spring burndown applications.

Make timely spring burndown applications.

As mentioned, winter annual weeds start growing as soon as temperatures warm. That means by the time you may be ready to plant, those weeds may have already entered reproductive stages, which makes them more difficult to control. Managing weeds when they’re still small will help increase the efficacy of your herbicide application.

Follow herbicide label instructions.

It won’t pay to cut corners with your spring burndown applications. Consult the herbicide label to ensure you’re using the right carrier type, volume, nozzles and partner products based on your weed pressure and environmental conditions. Also keep in mind that weed control is most effective when weeds are actively growing and metabolizing herbicide active ingredients. Generally, sunny, warm days with temperatures 55 degrees or above typically lead to more successful applications.

Boost herbicide performance.

Adding the right tank-mix partners, including effective adjuvants, can help improve herbicide coverage and weed control. Even small weeds can rob emerging crops of valuable moisture and nutrients, which can limit yield potential. Adding an effective adjuvant like StrikeLock® is an economical way to enhance herbicide performance and ensure you’re getting the most out of the dollars you’ve spent. StrikeLock adjuvant helps reduce drift, increase depth of deposition, enhance coverage and improve handling for more optimal weed control.
For more information about spring burndown applications, contact your local WinField® United retailer.
All photos are either the property of WinField United or used with permission.

© 2022 WinField United. Important: Before use always read and follow label instructions. Crop performance is dependent on several factors many of which are beyond the control of WinField United, including without limitation, soil type, pest pressures, agronomic practices and weather conditions. Growers are encouraged to consider data from multiple locations, over multiple years and to be mindful of how such agronomic conditions could impact results. Dimetric, StrikeLock and WinField are trademarks of WinField United. All other trademarks are the property of their respective owners.

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