# Tar Spot, Rust, and Red Crown Rot: The 2025 Disease Verdict with Dr. Dean Malvick

Page: https://stenobird.com/podcast/minnesota-cropcast-6393332/tar-spot-rust-and-red-crown-rot-the-2025-disease-verdict-with-dr-dean-malvick
Text version: https://stenobird.com/podcast/minnesota-cropcast-6393332/tar-spot-rust-and-red-crown-rot-the-2025-disease-verdict-with-dr-dean-malvick.md
Podcast: [Minnesota CropCast](https://stenobird.com/podcast/minnesota-cropcast-6393332)
Published: 2025-11-05T18:10:00+00:00
Episode link: https://share.transistor.fm/s/43c53fe6
Audio file: https://media.transistor.fm/43c53fe6/97f769ea.mp3
Processing state: not_requested
JSON: https://stenobird.com/v1/public/podcasts/minnesota-cropcast-6393332/episodes/tar-spot-rust-and-red-crown-rot-the-2025-disease-verdict-with-dr-dean-malvick
Duration seconds: 2302

## Resource

In this week's CropCast, hosts Seth Naeve and David Nicolai welcome Dr. Dean Malvick, University of Minnesota Extension Plant Pathologist for corn and soybeans. Dr. Malvick dives into the 2025 growing season to discuss the development and yield impact of key crop diseases. He provides a timely review of Southern Corn Rust and Corn Tar Spot disease biology, detailing their spread across Minnesota and adjoining states this year. Dean also outlines the knowns and unknowns regarding the progression of these corn diseases in relation to weather, wind, and crop rotation. Finally, the discussion covers the complex management strategies, including hybrid selection and the critical timing of foliar fungicides. We didn’t forget to ask about soybeans. Dean touches on the widespread presence of White Mold in Minnesota fields and the discovery of Red Cown Rot.

## Actions

- request_transcript: `POST https://stenobird.com/v1/public/podcasts/minnesota-cropcast-6393332/episodes/tar-spot-rust-and-red-crown-rot-the-2025-disease-verdict-with-dr-dean-malvick/transcription-requests` — Idempotently request low-priority transcript generation for this episode.
- read_markdown: `GET https://stenobird.com/podcast/minnesota-cropcast-6393332/tar-spot-rust-and-red-crown-rot-the-2025-disease-verdict-with-dr-dean-malvick.md` — Read the agent-friendly Markdown representation of this episode resource.

A page view does not enqueue transcription. Agents should invoke `request_transcript` explicitly when they need this episode processed.

## Transcript

Full transcripts are not published on public pages unless there is a clear rights basis.