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26 results on '"Smith, Damon"'

1. Management of soybean cyst nematode and sudden death syndrome with nematode-protectant seed treatments across multiple environments in soybean

Author

Bissonnette, Kaitlyn M., primary, Barizon, Jefferson, additional, Adee, Eric A., additional, Ames, Keith A., additional, Becker, Talon M., additional, Biggs, Meghan, additional, Bradley, Carl, additional, Brown, Mariama T., additional, Byamukama, Emmanuel, additional, Chilvers, Martin I., additional, Faske, Travis R., additional, Harbach, Chelsea J., additional, Jackson-Ziems, Tamra A., additional, Kandel, Yuba Raj, additional, Kleczewski, Nathan Michael, additional, Koehler, Alyssa M., additional, Markell, Samuel G., additional, Mueller, Daren S., additional, Sjarpe, Daniel, additional, Smith, Damon L., additional, Telenko, Darcy E. P., additional, and Tenuta, Albert, additional

Published
2024
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5. Fungicide sensitivity of Sclerotinia sclerotiorum from U.S. soybean and dry bean, compared to different regions and climates

Author

Nieto-López, Edgar Humberto, primary, Miorini, Thomas J. J., additional, Wulkop-Gil, Cristian A., additional, Chilvers, Martin I., additional, Giesler, Loren, additional, Jackson-Ziems, Tamra A., additional, Kabbage, Mehdi, additional, Mueller, Daren S., additional, Smith, Damon L., additional, Tovar-Pedraza, Juan Manuel, additional, Willbur, Jaime F., additional, and Everhart, Sydney, additional

Published
2023
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9. Influence of Fusarium virguliforme Temporal Colonization of Corn, Tillage, and Residue Management on Soybean Sudden Death Syndrome and Soybean Yield

Author

Baetsen-Young, Amy M., primary, Araldi Da Silva, Grazieli, additional, Kandel, Yuba R., additional, Jacobs, Janette L., additional, Byrne, Adam M., additional, Mueller, Daren S., additional, Smith, Damon L., additional, Tenuta, Albert U., additional, Wise, Kiersten A., additional, Day, Brad, additional, and Chilvers, Martin I., additional

Published
2021
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11. Diaporthe Seed Decay of Soybean [Glycine max (L.) Merr.] Is Endemic in the United States, But New Fungi Are Involved

Author

Petrović, Kristina, primary, Skaltsas, Demetra, additional, Castlebury, Lisa A., additional, Kontz, Brian, additional, Allen, Tom W., additional, Chilvers, Martin I., additional, Gregory, Nancy, additional, Kelly, Heather M., additional, Koehler, Alyssa M., additional, Kleczewski, Nathan M., additional, Mueller, Daren S., additional, Price, Paul P., additional, Smith, Damon L., additional, and Mathew, Febina M., additional

Published
2021
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12. Meta-Analysis of Soybean Yield Response to Foliar Fungicides Evaluated from 2005 to 2018 in the United States and Canada

Author

Kandel, Yuba R., primary, Hunt, Cathi, additional, Ames, Keith, additional, Arneson, Nicholas, additional, Bradley, Carl A., additional, Byamukama, Emmanuel, additional, Byrne, Adam, additional, Chilvers, Martin I., additional, Giesler, Loren J., additional, Halvorson, Jessica, additional, Hooker, David C., additional, Kleczewski, Nathan M., additional, Malvick, Dean K., additional, Markell, Samuel, additional, Potter, Bruce, additional, Pedersen, Wayne, additional, Smith, Damon L., additional, Tenuta, Albert U., additional, Telenko, Darcy E. P., additional, Wise, Kiersten A., additional, and Mueller, Daren S., additional

Published
2021
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15. Inoculation Method Impacts Symptom Development Associated with Diaporthe aspalathi, D. caulivora, and D. longicolla on Soybean (Glycine max)

Author

Ghimire, Krishna, Ghimire, Krishna, Petrović, Kristina, Kontz, Brian, Bradley, Carl A., Chilvers, Martin I., Mueller, Daren S., Smith, Damon L., Wise, Kiersten A., Mathew, Febina M., Ghimire, Krishna, Ghimire, Krishna, Petrović, Kristina, Kontz, Brian, Bradley, Carl A., Chilvers, Martin I., Mueller, Daren S., Smith, Damon L., Wise, Kiersten A., and Mathew, Febina M.

Abstract

One hundred fifty-two Diaporthe isolates were recovered from symptomatic soybean (Glycine max) stems sampled from the U.S. states of Iowa, Indiana, Kentucky, Michigan, and South Dakota. Using morphology and DNA sequencing, isolates were identified as D. aspalathi (8.6%), D. caulivora (24.3%), and D. longicolla (67.1%). Aggressiveness of five isolates each of the three pathogens was studied on cultivars Hawkeye (D. caulivora and D. longicolla) and Bragg (D. aspalathi) using toothpick, stem-wound, mycelium contact, and spore injection inoculation methods in the greenhouse. For D. aspalathi, methods significantly affected disease severity (P lt 0.001) and pathogen recovery (P lt 0.001). The relative treatment effects (RTE) of stem-wound and toothpick methods were significantly greater than for the other methods. For D. caulivora and D. longicolla, a significant isolate x method interaction affected disease severity (P lt 0.05) and pathogen recovery (P lt 0.001). Significant differences in RTEs were observed among D. caulivora and D. longicolla isolates only when the stem-wound and toothpick methods were used. Our study has determined that the stem-wound and toothpick methods are reliable to evaluate the three pathogens; however, the significant isolate x method interactions for D. caulivora and D. longicolla indicate that multiple isolates should also be considered for future pathogenicity studies.

Published
2019

18. Validating Sclerotinia sclerotiorum Apothecial Models to Predict Sclerotinia Stem Rot in Soybean (Glycine max) Fields

Author

Willbur, Jaime F., primary, Fall, Mamadou L., additional, Byrne, Adam M., additional, Chapman, Scott A., additional, McCaghey, Megan M., additional, Mueller, Brian D., additional, Schmidt, Roger, additional, Chilvers, Martin I., additional, Mueller, Daren S., additional, Kabbage, Mehdi, additional, Giesler, Loren J., additional, Conley, Shawn P., additional, and Smith, Damon L., additional

Published
2018
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20. Weather-Based Models for Assessing the Risk of Sclerotinia sclerotiorum Apothecial Presence in Soybean (Glycine max) Fields

Author

Willbur, Jaime F., primary, Fall, Mamadou L., additional, Bloomingdale, Christopher, additional, Byrne, Adam M., additional, Chapman, Scott A., additional, Isard, Scott A., additional, Magarey, Roger D., additional, McCaghey, Megan M., additional, Mueller, Brian D., additional, Russo, Joseph M., additional, Schlegel, Jay, additional, Chilvers, Martin I., additional, Mueller, Daren S., additional, Kabbage, Mehdi, additional, and Smith, Damon L., additional

Published
2018
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24. Influence of hybrid class and ensiling duration on deoxynivalenol accumulation and its derivative deoxynivalenol-3-glucoside while ensiling corn for silage.

Author

Chibuogwu M, Reed H, Groves C, Mueller B, Barrett-Wilt G, Webster RW, Goeser J, and Smith DL

Abstract

In silage corn ( Zea mays L.), Fusarium graminearum causes diseases and produces the mycotoxin deoxynivalenol (DON). The work presented here investigated DON accumulation and its fate during the ensiling of ground, whole-plant material obtained from dual-purpose (DP) and brown midrib (BMR) corn hybrids. Multi-year field trials arranged in a randomized complete block design were conducted in Wisconsin to evaluate BMR and DP corn hybrids in response to fungicide treatment. At harvest, the samples were chopped and vacuum sealed for a mini-silo time series assessment with silos opened following anaerobic fermentation for 0, 30, 60, 90 and 120 days. Repeated measures analysis of ensiled corn showed that hybrid ( P < 0.01) and ensiling duration ( P < 0.01) significantly impacted DON concentration through ensiling, while fungicide treatment had no significant effect ( P > 0.05). Across hybrids and treatments, DON concentrations detected at harvest were the lowest with DON3G at harvest significantly ( P < 0.01) and highly correlated (r = 0.74) with DON concentration 30-days post ensiling. These findings suggest that mycotoxin testing in corn should include not only DON but also for conjugates of DON that can be metabolized back to DON and increase the final DON concentration during ensiling.

Published
2024
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25. Effect of Fungicide Application and Corn Hybrid Class on the Presence of Fusarium graminearum and the Concentration of Deoxynivalenol in Ear and Stalk Parts of Corn ( Zea mays ) Used for Silage.

Author

Chibuogwu MO, Groves CL, Mueller B, and Smith DL

Subjects
Plant Diseases microbiology, Plant Diseases prevention & control, Plant Stems microbiology, Plant Stems chemistry, Animals, Zea mays microbiology, Zea mays chemistry, Fusarium drug effects, Fusarium genetics, Fusarium chemistry, Trichothecenes analysis, Silage analysis, Fungicides, Industrial pharmacology
Abstract

In Wisconsin, the use of brown midrib (BMR) corn ( Zea mays ) hybrids for ensiling and subsequent feeding to dairy cows is quite common. The overall milk production from cows fed silage from BMR hybrids is typically higher than those fed silage made from dual-purpose hybrids. Gibberella diseases (ear and stalk rot) caused by Gibberella zeae (anamorph; Fusarium graminearum ) and the accompanying accumulation of the mycotoxin deoxynivalenol (DON) can be significant issues during the field production of BMR hybrids. The work presented here aimed to understand the role of hybrid class on the distribution of F. graminearum DNA and DON in the ear and stalk parts of corn for silage. An ear and stalk partitioned sample experiment was conducted on silage corn from field trials in Arlington, Wisconsin, in 2020 and 2021. The trials were arranged in a randomized complete block design in both years, including one BMR hybrid, one dual-purpose hybrid, and seven fungicide application regimes. Paired ear and stalk samples were physically separated, dried, and ground at harvest before determining the concentration of F. graminearum DNA and DON in each sample. Across both years, the main effects of hybrid, treatment, and plant part were not significant ( P > 0.1) on DON concentration. However, the hybrid-by-plant part interaction effect was significant ( P < 0.01). Ears of the BMR hybrid accumulated the most DON, whereas the dual-purpose hybrid ears had the lowest DON concentration. The concentrations of DON and F. graminearum DNA were significantly ( P < 0.01) and highly correlated in the ear ( r = 0.73) but not in the stalk ( r = 0.09, P = 0.33). These findings suggest that DON accumulation in the corn ear is a major contributor in the difference observed in the total DON between the hybrid classes. Therefore, growers and researchers are encouraged to focus production and breeding on hybrids in both classes that accumulate less DON in ears, resulting in lower total DON in corn chopped for silage., Competing Interests: The author(s) declare no conflict of interest.

Published
2024
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26. Impact of Foliar Fungicide Application on the Culturable Fungal Endophyte Community of Soybean Seed in the Midwest United States.

Author

Batzer JC, Shirazi A, Lawson M, Mathew FM, Sureshbabu BM, Smith DL, and Mueller DS

Subjects
United States, Glycine max, Endophytes, Alternaria, Seeds, Iowa, Fungicides, Industrial pharmacology, Fusarium, Saccharomycetales
Abstract

The purpose of our study was to determine whether the application of quinone outside inhibitor (QoI) and pyrazole-carboxamide fungicides as a tank mix would impact the endophyte community of soybean seed. Field trials during 2018 in Iowa, South Dakota, and Wisconsin, U.S.A., investigated the impact of a single combination fungicide spray at early pod set in soybeans. The composition of culturable endophytic fungi in mature soybean seed was assessed on three cultivars per state, with maturity groups (MGs) ranging from 1.1 to 4.7. An unusually wet 2018 season delayed harvest, which led to a high level of fungal growth in grain. The survey included 1,080 asymptomatic seeds that were disinfested and individually placed on 5-cm-diameter Petri plates of acidified water agar. The survey yielded 721 fungal isolates belonging to 24 putative species in seven genera; taxa were grouped into genera based on a combination of morphological and molecular evidence. The dominant genera encountered in the survey were Alternaria , Diaporthe , and Fusarium . The study showed that the fungicide treatment reduced the incidence of Fusarium in Wisconsin seed, increased the incidence of Diaporthe in seed from all states, and had no impact on the incidence of Alternaria . This is one of the first attempts to characterize the diversity of seed endophytes in soybean and the first to characterize the impacts of fungicide spraying on these endophyte communities across three states. Our study provides evidence that the impact of a fungicide spray on soybean seed endophyte communities may be influenced by site, weather, and cultivar maturity group., Competing Interests: The author(s) declare no conflict of interest.

Published
2024
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