So what do you do?
- Herbicide degradation takes time and moisture.
- Although moisture is abundant in some regions, cool temperatures are inhibiting microbial activity.
- Shallow tillage can spread the herbicide residue throughout the field, where degradation will be enhanced.
- Early planting a rotated crop with sensitivity to the carryover herbicide may increase the likelihood of injury.
- The susceptibility of the crop really determines whether it will be injured.
- Retaining the 2012 crop in the same field will eliminate the potential for injury in 2013.
- If crop rotation is necessary, delayed planting would allow further degradation.
Dry soil in 2012 restricted the degradation of crop herbicides due to reduced microbial activity. Many fields planted in 2013 to a rotational crop may see herbicide injury, unless planting is delayed to allow as much degradation as possible.
Source: FarmGate blog