The purpose of this study is to evaluate different foliar fungicides, applied at the R1 growth stage, and their impact on yield and profitability.

This summer we saw minimal disease pressure in this plot. Even in the absence of disease, late-season fungicide applications have shown to increase yields, and this season was no exception. The response of XL® 6158AM™*brand to a fungicide application is not all that surprising given it has a high response to fungicide rating and a lower staygreen rating. Although only a slight yield increase of 3 Bu./A. was observed, the areas where a fungicide was applied stayed greener longer and saw increased yields. This also increased stalk strength and resulted in less loss at harvest from lodging.

 Fall: Disk-Rip, Spring: Field Cultivation | 

 Pre: 4 oz. Corvus®, 1 lb. Atrazine Post: 3 oz. Capreno®, 0.5 lb. Atrazine, 1 qt. Roundup PowerMAX® | 

*®XL, Optimum, and AcreMax are registered trademarks of Pioneer. XL® brand seed is distributed by Beck’s Superior Hybrids, Inc.

Stratego® YLD, Trivapro®, Preemptor™ SC, Delaro™ 325 SC

2021 Iowa Organic Soybean Fungicide & Insecticide Study - In-Furrow

2021 Iowa Soybean FUNGICIDE STUDY CARRIER RATE

Fungicide Study

2017 Ohio Corn Fungicide Study - Foliar

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