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Why Fall Herbicide Treatments Are Important in 2019

Fall Herbicide Treatments – Why It’s Important

 

Fall 2019 has been particularly difficult year for weeds. Some choose not to apply any herbicide to their fields, but this might be the year those few make a change. In the second half of the season this year saw a substantial increase in weed production. Leading to a drastic rise in fall emerging weeds in many fields. You can find many articles online concerning the best treatments as they have not changed much over the years, but here are some tips and recommendations.

 

When to Spray

 

Anytime between now and early December should be fine but typically before Thanksgiving would be ideal. It is best to apply herbicide before a hard freeze, when it is dry. You will see limited results if you spray after a snow, so wait for a solid rain that will help germinate and cause weeds to emerge. Then after it dries apply the herbicide to your field.

 

Will Crop Residue After Harvest Cause a Problem?

 

Crop residue should not cause a problem though waiting for it to settle before application wouldn’t hurt.

 

Keep It Simple

 

The temptation for some is to go with the most advanced or latest and greatest; however, this can be costly and ultimately unnecessary. “start with 2,4-D, and then add another herbicide that results in more comprehensive control. Herbicides that make the most sense to add to 2,4-D based on our research:  glyphosate, dicamba, metribuzin, simazine, Basis (and generic equivalents), Express (and generic equivalents), or Canopy/Cloak DF or EX.”**

 

Residual Herbicides

 

Just as applying no herbicide is an issue, there is also an issue with applying too much. Namely a residual herbicide. For the most part spraying a residual is overkill and can end up costing you more with little to now benefit. It may be tempting to use a residual herbicide so late emerging weeds can be dealt with, but they just aren’t that effective it is better to wait until spring and then apply a spring herbicide prior to planting.

**This is from an article from the Ohio State University, credit to Mark Loux. For more information check out the article here