Claim · model-written summary
Fungicides applied at the dent growth stage gave no yield benefit.
- Taxon
- hybrid corn
Zea mays subsp. mayst0 - Treatment
- at the dent growth stagee6
- Interactor
- southern rustt0pathogen
- Outcome
- yield benefite6
- Direction
- no_changeinferrede6
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Control of Southern Rust in Hybrid Corn in Arkansas”
e6“There was no yield benefit with fungicides applied in the absence of disease or at the dent growth stage”
Title
Travis R. Faske; Michael Emerson Plant Disease 2021. doi:10.1094/pdis-06-20-1247-re
Other claims from this paper (9)
- Intervention effect QoI or QoI + DMI fungicides gave greater southern rust control than DMI fungicides.
- Intervention effect QoI or QoI + DMI fungicides applied at tassel gave greater disease control (52.5%) than applications at milk or dent.
- Intervention effect QoI or QoI + DMI fungicides applied at tassel gave greater yield protection (40.4%) than applications at milk when final rust development was severe.
- Intervention effect When rust development increased late in the season, fungicides applied at milk gave better disease control (57.8%) than fungicides applied at tassel.
- Observation Grain yield protection was similar, with an average protection of 7.4%.
- Intervention effect Fungicides applied in the absence of disease gave no yield benefit.
- Intervention effect QoI or QoI + DMI fungicides applied at tassel most effectively managed southern rust when it was present and environmental conditions favored rust development.
- Observation Southern rust severity on the ear leaf and the two leaves above it was approximately 50, 35, 75 and 0% at dent in 2015, 2016, 2017 and 2018.
- Observation Trace amounts of southern rust were observed in the field at tassel each year.