What does this research mean for the field?

Winter rye susceptibility to ergot is a cultivar- and environment-driven trait independent of yield, and the pathogen can be completely inhibited in vitro by specific chemical fungicides, Bacillus subtilis, and essential oils. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To evaluate components of an integrated hybrid protection strategy against Claviceps purpurea in winter rye by assessing cultivar susceptibility alongside the in vitro efficacy of chemical, biological, and botanical agents.

September 5, 2026AgronomyOpen Access

Hybrid Protection Against Ergot (Claviceps purpurea (Fr.) Tul.) in Winter Rye (Secale cereale L.): Cultivar Susceptibility Under Artificial Inoculation and In Vitro Screening of Chemical, Biological and Botanical Agents

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To evaluate components of an integrated hybrid protection strategy against Claviceps purpurea in winter rye by assessing cultivar susceptibility alongside the in vitro efficacy of chemical, biological, and botanical agents.
Assessed mycelial growth inhibition across 11 chemical, biological, and essential oil treatments using an in vitro poisoned-medium agar-dilution assay.
Conducted field trials across multiple locations and years evaluating winter rye cultivars under artificial inoculation with a conidial suspension applied at anthesis.
Complete mycelial inhibition (100%) occurred with prothioconazole, mandestrobin, systemic copper, Bacillus subtilis (QST 713), mandarin essential oil (1% and 5%), and lemon and ginger essential oils at 5%, while azoxystrobin suppressed 83.6%.
Ergot contamination differed significantly across cultivars, locations, and years (p < 0.001, model R² = 0.937), spanning from 0.60% in cultivar DL 19 to 2.69% in cultivar SU Performer.
Ergot content was strongly correlated with ergot weight (r = 0.96) but exhibited no significant linear correlation with grain yield.

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Implication

An in vitro and field trial demonstrates variable cultivar resistance and complete pathogen inhibition by select bio-agents in winter rye, highlighting viable integrated ergot management strategies.

Cite This Study

Danielewicz et al. (2026) studied this question.

synapsesocial.com/papers/6a9bd3f16b95aff0620eb2b8 https://doi.org/10.3390/agronomy16171702

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Implication

An in vitro and field trial demonstrates variable cultivar resistance and complete pathogen inhibition by select bio-agents in winter rye, highlighting viable integrated ergot management strategies.

Hybrid Protection Against Ergot (Claviceps purpurea (Fr.) Tul.) in Winter Rye (Secale cereale L.): Cultivar Susceptibility Under Artificial Inoculation and In Vitro Screening of Chemical, Biological and Botanical Agents

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Discussion

Implication

Cite This Study

Hybrid Protection Against Ergot (Claviceps purpurea (Fr.) Tul.) in Winter Rye (Secale cereale L.): Cultivar Susceptibility Under Artificial Inoculation and In Vitro Screening of Chemical, Biological and Botanical Agents

Key Points

Discussion

Implication

Cite This Study

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