Is sunlight breaking down pre-em herbicides where farmers are dry sowing?

Is sunlight breaking down pre-em herbicides where farmers are dry sowing? Our Western Extension Agronomist, Peter Newman, has been fielding questions over the last few days via Twitter on this. He did some digging and found that sunlight is only having a small effect on pre-emergent herbicide degradation. It turns out that light rain is … Continue reading Is sunlight breaking down pre-em herbicides where farmers are dry sowing?