Field Performance of Lumiscend™ Pro Fungicide Seed Treatment
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Written by Mark Jeschke, Ron Sabatka, Paul Gaspar, and Brad Van Kooten
Key Findings
- Lumiscend™ Pro fungicide seed treatment increased corn yield compared to the former standard fungicide seed treatment package in field research studies.
- Lumiscend Pro fungicide seed treatment increased corn stand establishment compared to a competitor seed treatment in inoculated field plots, particularly in plots inoculated with Rhizoctonia and metalaxyl-resistant Pythium ultimum.
Lumiscend™ Pro Fungicide Seed Treatment
- Lumiscend™ Pro is a fungicide seed treatment formulated to protect against damping off, seedling blight, as well as seed and root rot caused by Pythium spp., Fusarium spp., and Rhizoctonia solani.
- Lumiscend Pro includes three active ingredients: ethaboxam, metalaxyl, and inpyrfluxam.
- Ethaboxam and metalaxyl provide two robust modes of action against Pythium spp., including metalaxyl- and mefenoxam-resistant strains.
- Inpyrfluxam is a new active ingredient (FRAC Group 7) that protects against Fusarium spp., as well as providing industry leading protection from Rhizoctonia seed and soil-borne diseases.
Field Research
- Field experiments were conducted in 2020, 2021, and 2022 to evaluate the performance of Lumiscend Pro fungicide seed treatment for stand establishment and yield in corn.
- Replicated experiments conducted at 50 locations in 2020 and 2021 compared yield of corn treated with Lumiscend Pro to corn treated with the previous standard fungicide seed treatment package for Pioneer® brand corn products (2022 FST).
- A replicated field experiment conducted near Valdosta, GA in 2022 compared stand establishment of corn seed treated with Lumiscend Pro fungicide seed treatment to seed treated with a competitor FST and seed with no FST in plots inoculated with common corn seedling pathogens.
- Plots were inoculated with Rhizoctonia, Fusarium graminearum, Fusarium oxysporum, Pythium ultimum, or metalaxyl-resistant P. ultimum.
- Plots were all planted at a seeding rate of 29,000 seeds/acre and plant stand was evaluated at 14, 21, and 28 days after planting (DAP).
Replicated seed treatment trial near Valdosta, Georgia in 2022 inoculated with Fusarium graminearum. Seeding rate in the trial was 29,000 seeds/acre. Photo shows stand establishment 28 days after planting. Click here or on the image above for a larger view.
Results
2020-2021 Field Experiments
- At 16 field research locations that experienced high early season stress and disease pressure, corn seed treated with Lumiscend Pro fungicide seed treatment averaged 3 bu/acre more than that of seed treated with the previous standard fungicide seed treatment (Figure 1).
- Across all 2020 and 2021 field research locations, yield of corn seed treated with Lumiscend Pro fungicide seed treatment was similar to that of seed treated with the previous standard fungicide seed treatment, averaging 1 bu/acre higher (Figure 2).
Figure 1. Average yield of corn seed treated with Lumiscend Pro fungicide seed treatment and seed treated with the previous standard fungicide seed treatment across 16 replicated field experiments with high early season stress and disease pressure in 2020 and 2021.
Figure 2. Average yield of corn seed treated with Lumiscend™ Pro fungicide seed treatment and seed treated with the previous standard fungicide seed treatment across 50 replicated field experiments in 2020 and 2021.
2022 Stand Establishment Experiment
- High levels of disease pressure were successfully induced in all inoculated plots, as demonstrated by the extremely poor stand establishment of corn seed with no fungicide seed treatment (Figure 3).
- Lumiscend Pro fungicide seed treatment provided a clear advantage in stand establishment compared to the competitor FST in plots inoculated with Rhizoctonia, averaging nearly 5,000 plants/acre more at 28 days after planting.
- In plots inoculated with Fusarium or Pythium spp., stand establishment was often comparable between Lumiscend Pro fungicide seed treatment and the competitor FST at 14 days after planting.
- Beyond 14 days after planting, the competitor FST experienced continued attrition in plant stand as measured at 21 and 28 DAP; however, corn treated with Lumiscend Pro fungicide seed treatment did not.
Replicated seed treatment trial near Valdosta, Georgia in 2022 inoculated with Rhizoctonia. Seeding rate in the trial was 29,000 seeds/acre. Photo shows stand establishment 28 days after planting. Click here or on the image above for a larger view.
Figure 3(a). Plant stand 14, 21, and 28 days after planting in a 2022 field plot inoculated with Rhizoctonia corn seedling pathogen.
Figure 3(b). Plant stand 14, 21, and 28 days after planting in a 2022 field plot inoculated with Fusarium graminearum corn seedling pathogen.
Figure 3(c). Plant stand 14, 21, and 28 days after planting in a 2022 field plot inoculated with Fusarium oxysproum corn seedling pathogen.
Figure 3(d). Plant stand 14, 21, and 28 days after planting in a 2022 field plot inoculated with Pythium ultimum corn seedling pathogen.
Figure 3(e). Plant stand 14, 21, and 28 days after planting in a 2022 field plot inoculated with Pythium ultimum - metalaxyl resistant - corn seedling pathogen.
The foregoing is provided for informational use only. Please contact your Pioneer sales professional for information and suggestions specific to your operation. 2020-2022 data are based on average of all comparisons made in over 50 locations through Sept. 1, 2022. Multi-year and multi-location is a better predictor of future performance. Do not use these or any other data from a limited number of trials as a significant factor in product selection. Product responses are variable and subject to a variety of environmental, disease, and pest pressures. Individual results may vary.