A wet spring has led to late planting of soybeans for many farmers and they might have to skip their pre-emerge programs once field conditions allow for continuous planting. That will bring a post emerge soybean herbicide program into sharper focus.
Brent Neuberger, senior technical service manager at FMC Agricultural Products, says the best timing for that application will largely be dictated by Mother Nature, “but the thing I think is paramount is that we make applications, at least post emerge applications based on weed size. We know from experience that as those weeds get larger they become more difficult so ideally we’d like to target weeds less than four inches tall to get the ideal control that we’re desiring.”
Actual weed pressure in Indiana and across the Midwest so far is varied, but FMC says best control will come with multiple modes of action in the post application.
“As we look at resistance becoming more of an issue those pre-emerges were a big part of fighting that resistance and different mode of action. Now we’ve got to bring products in with that glyphosate and that’s where Marvel comes in. It’s different modes of action than what glyphosate is so we’re getting multiple modes of action out there so we have a better chance to get the control that grower desires.”
Marvel is new in the fields having received final approval earlier this year.
As usual to get the best view of what weeds are in your fields, Neuberger says scout.
“We need to identify what weeds are out there and what sizes. Obviously a lot of these fields will have history that growers and or retailers should know if it’s been a field where we’ve seen glyphosate resistance. That being the case we’re going to have to make sure we have something in the tank with glyphosate.”
Learn more about Marvel, the aggressive tank-mix partner for maximum control of glyphosate-resistant weeds, by visiting the FMC website, www.FMCcrop.com, or by contacting your retailer.
Postemergence weed control in soybeans is becoming more of a challenge because of glyphosate resistance. Increasing herbicide diversity, including multiple modes of action, with postemergence herbicide applications will increase weed spectrum and preserve the effectiveness of current herbicide trait technologies. PPO (protoporphyrinogen oxidase) herbicides, such as Marvel, when added with postemergence glyphosate or glufosinate applications, will diversify chemistry in addition to weed spectrum. Foliar coverage is critical for maximizing PPO herbicide effectiveness.
Marvel herbicide targets waterhemp, palmer pigweed, lambsquarters and other key weeds with broad-spectrum control.
The full HAT interview:Brent Neuberger on Marvel