Harvest tells you what worked and what didn’t work any given season. Both your yield monitor and what you see from the combine cab help you decide what you might want to change next year. But sometimes you need to get a bit closer.
One of my colleagues in Wisconsin reported that he walked numerous fields during harvest, and found many small, late-emerging weeds, just 5 to 6 inches tall, dropping a significant amount of seed. Those will be among the weeds you will need to manage next year.
In soybean, an early spring residual herbicide could help you get off to a strong start in 2010. The University of Missouri says, “Our data indicate that early spring applications of residual herbicides provide better control of emerging summer annual weed seedlings than fall herbicide applications.”
With glyphosate- and ALS-resistant weeds becoming more common issues in soybean fields, herbicide selection and application timing are critical. Residual soybean herbicides with two modes of action will provide broad-spectrum weed control
and help fight resistance.
Plus, a spring pre-emergence application is your best bet for yield protection.