Effects of Common Peanut Herbicide Residues on Cover Crop Establishment

Institution:

Auburn University

Budget ID:

1545

Project ID:

484

Report BID:

State:

Alabama

Region:

Southeast (GA, FL, AL)

State Group:

AL-97

Project Fiscal Year:

2017

Category:

Production/Agronomics

Report Type:

Report Received Date:

Investigator:

Li

Project NPB Budget:

$14,000

When selecting a cover crop a producer needs to take into account any residual herbicide use and the goal of the cover crop (i.e. weed suppression, erosion control, high residue, etc.). 
If high residue is the goal of the cover crop but herbicide carryover is a concern, wheat and clover are the best options depending on the herbicide. If Strongarm, Classic, Envoke, Direx and Valor carryover is a concern then clover is the best option for high residue results. While wheat is the best option if Warrant, Cadre, Staple LX, and Caporal carryover is the concern. We recommend producers utilize oats as a cover crop when there is a concern for residual herbicide injury, especially if Dual Magnum, Zidua or Warrant carryover is a concern as it was the most resilient cover crop. If a high residue crop is required and herbicide carryover is not a concern then clover, oats and/or vetch would be the best options. 

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