Dry conditions will likely impact herbicide carryover to rotational crops

Christy Sprague

Dry conditions will likely impact herbicide carryover to rotational crops (PDF)

Dry conditions this growing season throughout most of the state have not only affected the current crop, but will likely impact rotational crops including wheat and cover crops planted this fall. Reduced soil moisture following a herbicide application (especially in the first 2-4 weeks) can slow the degradation (breakdown) of herbicides, resulting in the potential for carryover. Additionally, lack of soil moisture can also result in increased herbicide adsorption to soil particles and organic matter, reducing herbicide availability for degradation.

Christy Sprague