corn

Episode 187 – Spring Update: Planting progress, cold damage, and more

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Planting season are never normal and 2026 is no exception. With the southern half of Ohio nearing completion and the northern half struggling to make headway, there was a lot of crop variability as below freezing temperatures hit the state. Expected prolonged cold and wet weather as another wrinkle. Dr. Jason Hartschuh, Field Specialist with OSU Extension, joins us as we talk about the potential impacts on corn, soybean, wheat and alfalfa. We share what to look for now and in the coming weeks as we deal with a cooler, wetter May.

This CORN Newsletter has two articles on freeze impacts to soybeans and wheat: https://agcrops.osu.edu/newsletter/corn-newsletter/2026-12. The Purdue photo gallery on freeze damage can be found at: https://www.agry.purdue.edu/ext/corn/news/articles.01/Frost_Corn_Soy-0418_Gallery.html.

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Episode 185 – A Slippery Situation: Battling Slugs in Row Crops

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Slug pressure has become an increasingly common and frustrating challenge in crop fields in recent years, driven by wetter springs, heavy residue, and changing production systems. In this episode, we dig into why these slippery pests seem harder to manage than ever. With Kelley Tilmon joining us, discuss the limitations of traditional control options and what growers should realistically expect from different management strategies. From scouting and risk factors to cultural, biological, and chemical tools, we’ll break down what we know and how to make informed decisions when slugs start putting your stand at risk.

For more information, visit aginsects.osu.edu where you can find publications, fact sheets and ID cards. Most slug info is found under the soybean section.

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Episode 181 – From the Ground Up Research

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Two farmers, Fred and Josh Yoder, discuss one conservation focused research project developed by a group of farmers in Ohio. They are part of a multi-state, four-university effort to discover how to increase conservation adoption on farms. Our farmer-led team is working to improve real-world, on-farm performance of conservation practices to ensure they better generate the outcomes – e.g. profitability, yield stability, and protection from extreme weather events – that farmers need.

To learn more about this project, visit: https://ftgup.org/.

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Episode 173 – All in on Harvest Data – Part 2

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We continue our discussion with Dr. John Fulton on how to increase the reliability of harvest data. This time we focus on the in-field practices. With bigger machines, it is getting more difficult to collect high res data. Tune in for recommendations on things such as how long passes should be and more to increase the quality of your yield data.

For more resources on harvest data, visit: https://digitalag.osu.edu/precision-ag/research-focuses/harvest-technologies.

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Episode 171 – All in on Harvest Data – Part 1

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Farmers write some big checks based on harvest data. How confident are you in the quality of that data? We’re getting into the weeds with Dr. John Fulton about how to ensure confident decisions can be made based on what is collected in the field this fall. In the first of this two part series, we talk about how yield measurements are collected in the combine, provide advice on calibration and discuss how unintentional mistakes can lead to big missteps with input decisions.

For more information on calibration, visit: https://digitalag.osu.edu/precision-ag/research-focuses/harvest-technologies.

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Episode 169 – Tar Spot in 2025

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Tar spot concern continues to grow across Ohio as it shows up in more and more fields each year. Each year farmers and researchers wonder if this will be the season it really explodes, causing widespread economic damage. For a background on Tar Spot, check out episodes 123 and 101.

In this episode, Dr. Stephanie Karhoff updates us on the latest research and treatment recommendations for managing not only Tar Spot but Gibberella ear rot and the vomitoxin it causes. Each disease has certain weather conditions and infection timing that are critical components to successfully managing it in field. The Crop Protection Network’s disease forecasting tool can afford insight into what to look for during scouting: https://cropprotectionnetwork.org/crop-disease-forecasting.

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Episode 165 – Which to plant first?

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Each planting window brings the same question- Should I plant corn or soybeans first? Perhaps you have heard it referred to as the Battle for the Belt. Dr. Osler Ortez joins us for an update on his research based competition with soybean specialist Dr. Laura Lindsey to determine when the best windows are for planting corn and soybeans. They are also looking at where the largest yield losses occur when planting is delayed. These results can help farmers make decision on when to switch between corn and soybeans based on the calendar, maturity and conditions.

Follow updates on YouTube, the C.O.R.N. Newsletter and X (Dr. Ortez and Dr. Lindsey).

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Episode 157 – eFields 2024

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The 2024 eFields report is here! With 260 on-farm research sites across 42 counties, there is sure to be something of interest to everyone. In this episode, we highlight a few of the projects included in this year’s report.

To view the online version, visit: digitalag.osu.edu/efields. For a print copy, contact your local OSU Extension office or email digitalag@osu.edu.

To suggest topics for 2025, email Amanda at douridas.9@osu.edu and let us know what you want to hear about!

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Episode 154 – Fertility Decisions

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While fertilizer prices have come down somewhat, crop prices have many farmers considering where to cut budgets. Fertilizer can be an option and in this episode we talk about how to do it strategically. We cover where to start with soil testing, how lime might be your cheapest option and where to cut P and K if need be.

P & K Fertility Decision with Tight Margins
Tri-State Fertilizer Recommendations
Ohio Agronomy Guide
Corn Nitrogen Rate Calculator

Soil Testing Resources:
Soil Sampling to Develop Nutrient Recommendations
Interpreting a Soil Test Report
Choosing a Laboratory for Nutrient and Soil Health Testing

Soil pH:
Soil Acidity and Liming for Agronomic Production (AGF-505)
Understanding Value in Lime
Soil Acidification: How to Lower Soil pH
Lime Application Rate Calculator (excel)

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Episode 144 – Dealing with DON

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There is nothing more frustrating than getting rejected at the elevator due to high vomitoxin (aka DON) levels. DON is produced by a fungi produced on the ear and is usually infected at the time of pollination. To give farmers a better perspective of what happens behind the scenes at a grain elevator, we interview 3 grain merchandisers on their process when DON test levels start creeping up.

Jason Beckman (Poet), Lisa Mitchell (Gerald Grain), and Seth Miller (The Anderson) take us behind the scenes of their operations to look at testing, grain flow and market impacts. We end with some quick reminders about DON management and to check the C.O.R.N. Newsletter for updates and research on corn fungicide and disease.

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