Iowa corn harvest is 4% complete, with soybean harvest at 7% as of Sept. 20, USDA reports.
Resistance is an issue for several grass and broadleaf weed species, but timing, application and weather might also affect herbicide efficacy.
Eye on Crops: Variety selection and appropriate fungicides can help curtail yield hits.
Corn Watch: A more normal season is resulting in more typical maturity dates.
Farm Business: Can you afford to lose money in the short run to hold on to acres?