The best soybean weed control starts
before you ever see them
Studies show that significant yield loss can occur in the early stages of soybean development. Research from 2007 to 2021 by Dr. Peter Sikkema, Professor in Weed Management for Field Crops, University of Guelph, Ridgetown Campus, found that the average yield loss in soybean due to weed interference was 35%. In some cases, losses could reach as high as 88%*.
To ensure a clean field and minimize yield loss, Dr. Sikkema recommends soybean growers use a two-pass weed control program that starts with a broad-spectrum soil-applied herbicide that matches the weed species composition in each individual field.
Based on his findings, the results are well worth it. His calculations point to a possible 344% ROI using a two-pass weed control program!
Attack weeds with Authority® brand herbicides
When it comes to weed control, the best defence is always a good offence, which means attacking weeds head on before they emerge with Authority® Supreme herbicide and Authority® 480 herbicide.
"There can be a dramatic yield and monetary loss from delayed herbicide application with postemergence-only weed control programs in soybean.”
- Dr. Peter Sikkema, University of Guelph, Ridgetown Campus
*Research trial information: 107 fields were included in the trials with some fields having extremely low weed pressure and showing 0% yield loss and other fields with very high weed pressure, causing 88% yield loss. 1Personal communication with Dr. Peter Sikkema.
