What does this research mean for the field?

The fungal pathogen Calonectria ilicicola causes red crown rot in soybeans in Minnesota, representing a significant geographic expansion of the disease's known range. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To identify and confirm the presence of red crown rot in soybean plants caused by C. ilicicola in Minnesota.

May 20, 2026Plant Disease

First Report of Red Crown Rot of Soybean Caused by Calonectria ilicicola in Minnesota

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Authors

DMDean Malvick CFCrystal Marie Floyd JSJosé E. Solórzano

Discussion

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Overview

Randomized trial confirms red crown rot caused by Calonectria ilicicola in soybean, indicating a new risk for Minnesota agriculture.

Key Points

To identify and confirm the presence of red crown rot in soybean plants caused by C. ilicicola in Minnesota.
Symptomatic soybean plants were collected for diagnosis and analysis.
Genomic DNA from isolates was sequenced for identification.
Koch's postulates were followed to demonstrate pathogenicity in soybean.
Red crown rot symptoms developed in inoculated plants after 3 weeks.
Isolation confirmed the pathogen was C. ilicicola from inoculated plants.
This finding represents a range expansion for red crown rot in the U.S.

Cite This Study

Malvick et al. (2026) studied this question.

synapsesocial.com/papers/6a0d50aff03e14405aa9cb09 https://doi.org/10.1094/pdis-01-26-0234-pdn

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May 20, 2026Plant Disease

First Report of Red Crown Rot of Soybean Caused by Calonectria ilicicola in Minnesota

View Full Paper

Ask AI

Bookmark

Authors

DMDean Malvick CFCrystal Marie Floyd JSJosé E. Solórzano

Discussion

Member takes

Overview

Randomized trial confirms red crown rot caused by Calonectria ilicicola in soybean, indicating a new risk for Minnesota agriculture.

Key Points

To identify and confirm the presence of red crown rot in soybean plants caused by C. ilicicola in Minnesota.
Symptomatic soybean plants were collected for diagnosis and analysis.
Genomic DNA from isolates was sequenced for identification.
Koch's postulates were followed to demonstrate pathogenicity in soybean.
Red crown rot symptoms developed in inoculated plants after 3 weeks.
Isolation confirmed the pathogen was C. ilicicola from inoculated plants.
This finding represents a range expansion for red crown rot in the U.S.

Cite This Study

Malvick et al. (2026) studied this question.

synapsesocial.com/papers/6a0d50aff03e14405aa9cb09 https://doi.org/10.1094/pdis-01-26-0234-pdn

View Full Paper

Ask AI

Bookmark