Posted 12/2/2022 20:35 (#9962185 - in reply to #9961413) Subject: RE: fierce herbicide
hammlipps - 12/2/2022 11:26
Just wondering the performance for the guys that have used Fierce herbicide. Does the residual hold up? Soybean injury?? etc. Thanks
With 6 oz of Fierce EZ you get 0.0797lbs of pyroxasulfone (2.45 oz Zidiua SC) and 0.0628lbs of Flumioxazin (2oz Valor SX). If you have heavy grass or waterhemp I would want a bit higher rate of Zidua. The max rate of Zidua SC is 5 oz on Medium soils. Adding metribuzin to Fierce is a good idea. Attached is a Purdue article with some good information.
Fierce can be hard on beans if it's cold and wet. Especially if you use ILeVO seed treatment. ISU recommended spraying it a week or so before planting. The thought behind it is to get rain on the herbicide before the soybeans emerge.
fierce herbicide
