2020
Evaluation of Miravis for Soybean Production in Maryland
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Contributor/Checkoff:
Maryland Soybean Board
Category:
Sustainable Production
Keywords:
Crop protectionDiseaseField management
Parent Project:
Evaluation of Miravis Fungicide for Soybean Production in Maryland
Lead Principal Investigator:
Andrew Kness, University of Maryland
Co-Principal Investigators:
Project Code:
Contributing Organization (Checkoff):
Maryland Soybean Board
$4,823
Institution Funded:
University of Maryland
$4,823
Brief Project Summary:

Maryland, along with the entire Atlantic Coast region, often has high humidity during much of the growing season. Because of that, disease pressure tends to be high. When companies release new fungicides for in-season soybean applications, farmers want to know how they compare to other commonly used products under real-world conditions. This research provides this information through annual comparison trials. This includes evaluation of Miravis fungicides, recently released by Syngenta containing two modes of action and labeled for two consecutive applications 14 days apart.

Key Beneficiaries:
#agronomists, #Extension agents, #farmers
Unique Keywords:
#disease, #disease, #fungicide, #fungicide, #fungicide use, #fungicide use, #soybean diseases
Information And Results
Project Deliverables

Data and education in the form of extension articles and presentations regarding the efficacy of Miravis for soybean production in Maryland.

Final Project Results

Update:

View uploaded report PDF file

The 2020 growing season at Wye and WMREC were very different. Wye received 47 inches of rain from May 1-November 1, 2020, while WMREC revived 19.8 inches over that same timeframe (Appendix 1 & 2). Wye plots also had a severe infestation of herbicide-resistant marestail that likely lowered the yield potential and affected the severity and incidence of FLS. All fungicide treatments significantly reduced FLS severity at both locations. All fungicide treatments affected NDVI by keeping the plants greener for longer, as well as increased the occurrence of green stem.

For the second year in a row we observed a significant increase in yield from fungicide-treated plots at the higher yielding, early planted trial location, with Miravis treatments performing significantly better than Priaxor and Priaxor performing better than the untreated control. No yield differences were detected at WMREC, which is likely due to the very low and poor yields due to droughty conditions and disease was not likely the major yield-limiting factor.

Combined 2019 and 2020 data reveal a significant 6-9 bushel increase in yield with the Miravis treatments, and a 3-5 bushel increase in yield with Priaxor. Based on this data and data from other institutions, Miravis may benefit soybean production by providing protection against common foliar diseases of soybean and help increase yields under early planted, high yield potential soybeans.

The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.