Applying fungicide to silage corn and Miravis® Neo FAQs
July 19, 2023
Q: Why should I apply Miravis® Neo to my corn silage?
A: Livestock performance is greatly impacted by feed quality. That is why we want to protect against key leaf and ear rot diseases in corn!
We know that…
- Diseases reduce yield and quality of silage corn
- Diseases impact both leaf and stalk quality
Miravis® Neo protects against key leaf and ear rot diseases which maximizes yield and silage quality. Some growers have even seen a wider harvest window, reducing the silage harvest stress. Many growers have seen excellent results with Miravis® Neo on their silage corn (n=10). A series of 2021 trials showed a 2.27 MT/ac average increase (n=10) and improved quality benefits against untreated.
We are excited to highlight Miravis® Neo on corn silage and help dairy and beef producers improve their feed!

Photo: Joanna Wallace – Seaforth, ON – 2021
Q: What actives are in Miravis® Neo?
A: Miravis® Neo fungicide contains three active ingredients including our groundbreaking fungicide, ADEPIDYN®
- ADEPIDYN® fungicide – Group 7
- Azoxystrobin – Group 11
- Propiconazole – Group 3
Q: What makes ADEPIDYN® unique over other fungicides?
A: ADEPIDYN® is a very potent molecule with lipophilic properties. This means it binds with the waxy leaf surface (cuticle) resulting in excellent rainfastness. As well, ADEPIDYN® slowly releases into the plant tissue from the waxy cuticle, delivering a continued, stable dosage of active ingredient that provides optimal disease control.
Check out this video to learn more about how ADEPIDYN® works.
Q: Which diseases does Miravis® Neo control in corn?
A:
- Anthracnose leaf blight (Colletotrichum graminicola)
- Eye spot (Aureobasidium zeae)
- Grey leaf spot (Cercosporazeae-maydis)
- Northern corn leaf blight (Setophaeria turcica)
- Southern corn leaf blight (Cochliobolus heterostrophus)
- Common rust (Puccinia sorghi)
In addition: Miravis® Neo provides suppression of tar spot, Fusarium and Gibberella ear rots (Fusarium spp and Gibberella zeae).
Miravis® Neo - Registered on tar spot!

Q: How well does Miravis® Neo suppress DON?
A: Miravis® Neo performed well in our trials and did an excellent job in reducing % DON relative to the inoculated check (over 50% suppression1)
Q: Silos or bunks are full? What return on investment can I expect on grain corn?
A: Field scale trials conducted by farmers from 2018-2022 showed that Miravis Neo® helped deliver over $43/ac ROI.2

Source: Grower trials conducted across Ontario in 2018-2022. N = 86
Q: What is the packaging and use rate?
A: Miravis® Neo is a premix formulation, which is packaged in 2 X 10.125 L jugs per case and 405 L totes. For corn:
- One case will treat 50 acres at 0.4 L/ac
- One tote will treat 1000 acres at 0.4 L/ac
Q: What is the ideal application timing?
A: For the best possible return on investment:
- Apply from pre-tassel through tassel (VT) for leaf disease control. Miravis® Neo can be applied earlier if disease pressure is high.
- Apply at silking (R1) time (before silks brown off) for Fusarium/Gibberella ear rots and DON suppression.
Q: How should Miravis® Neo be applied?
A: For the best activity on labelled diseases, use a minimum spray volume of 20 gal/ac using flat fan or air induction nozzles that direct spray droplets directly down into the canopy.
Q: Rainfastness?
A: 2 hours or once dry. Avoid application before a heavy rainfall.

Photo: Stephanie Fletcher – Caledonia, ON – 2023
If you have any questions about Miravis® Neo or another other Syngenta product, please get in touch!
Always read and follow label directions. Miravis® Neo refers to Miravis® 300 SE fungicide. ADEPIDYN®,Miravis® and the Syngenta logo are trademarks of a Syngenta Group Company. All other trademarks are the property of their respective owners. © 2023 Syngenta.
Source: 2018 Syngenta research trials and University of Guelph small plot and field scale trials conducted by Art Schaafsma. N = 40. Trademarks are property of their respective owners. Performance evaluations are based on internal trials, field observations and/or public information. Data from multiple locations and years should be consulted whenever possible. Individual results may vary depending on local growing, soil and weather conditions. Always read and follow label directions.
ROI calculation subtracts SRP of product and application cost. Also assumes corn cash price of $6.35/bu (as of May 25, 2023). Return on investment is based on the foregoing assumptions. Individual results may vary. Performance evaluations are based on internal trials, field observations and/or public information. Data from multiple locations and years should be consulted whenever possible. Individual results may vary depending on local growing, soil and weather conditions. Always read and follow label directions. Trademarks are property of their respective owners.