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Dr. Tree Fruit and Don

Penn State Extension
Apple Scab
Pennsylvania
Tree Fruit Production
Pest Management
Fire Blight
Weather Conditions
Diseases Of Tree Fruit
Thinning Techniques
Chemical Thinners
Oriental Fruit Moth
Plum Curculio
Codling Moth
SPARC
Tree Fruit
Bloom Thinning
Apple
Fruit Thinning
Bacterial Spot
Peach Leaf Curl
Bitter Rot

This podcast focuses on providing timely commercial tree fruit production advice for beginning industry professionals and seasoned growers. Educators from Penn State Extension and faculty from Penn State University’s horticulture, entomology, and plant pathology departments drop in to give insights and observations about what is going on in the orchards.

PublishesMonthlyEpisodes91Founded6 years ago
Number of ListenersCategory
Education

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Artwork for Dr. Tree Fruit and Don

Latest Episodes

Don is joined by Kari and Shan this week to discuss what happens what a spring freeze doesn’t just “nip” buds. Shan highlights what to do after the frost: how to sample across a block, cut buds to spot real freeze damage in the reproductive tissue.

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This bonus episode is to highlight another fruit podcast focused on horticulture/phenology/physiology topics from Extension professionals and researchers around the country. It's hosted by Don and includes personnel from Cornell, Michigan State, Univ... more

YouTube

Don, Kari, Shan, and Greg highlight the very first stages of spring as green tip begins to emerge around the state in apples.

Music Credit: “The Raven and the Swan” by Josh Woodward is licensed under a Attribution 3.0 United States License. Courtesy... more

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Don, Kari, Greg, and Shan dig into stone fruit losses and disease timing as a warm spell pushes early peaches toward bud swell. We outline what early scouting actually tells you and how to get ready for oriental fruit moth and codling moth.

If this ... more

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We welcome our new pomologist, Dr. Sara Serra, and dig into how pruning, harvest timing, and vision tech can raise fruit quality across apples, pears and peaches. 

The Mid-Atlantic Fruit and Vegetable Convention begins Jan 27. Registration available... more

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Don, Kari, Shan, and Greg unpack the season’s rollercoaster: a soggy May that drove scab, rust, and bitter rot risk, followed by a dry, color‑rich harvest window. We lay out infection windows, what worked for Honeycrisp, why alternate row coverage ba... more

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Kari, Greg, Shan and Don share a fast, practical harvest update focusing on EverCrisp and Fuji maturing ahead of color and what that means for storage. We also cover late pest pressure, storage rot prevention, and label uncertainty.

Photo Credit: Li... more

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Don, Kari, Shan and Greg highlight disease and insect pressure to watch out for during a critical period to harvest some important Pennsylvania varieties. Keep an eye out for Shan and the crew's harvest maturity assessments weekly on Tuesdays.

Photo... more

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Recent Guests

Dr. Greg Krawcheck
Professor contributing to technical orchard management discussions
Penn State University
Episode: Season 7, Episode 3: Green Tip Game Plan
Dr. Sean Kumar
Professor providing disease and pest management updates
Penn State University
Episode: Season 7, Episode 3: Green Tip Game Plan
Sean Kumar
Guest on the episode, introduced as a Dr. and contributor
Penn State (implied)
Episode: Season 7, Episode 2 - End of Winter Wins
Sarah Zost
A fourth-generation apple grower and representative for SHAP
State Horticultural Association of Pennsylvania (SHAP)
Episode: Season 6, Episode 4 - State Horticultural Association Job Posting
Lee Kalcsits
Associate Professor and Endowed Chair for Tree Fruit Physiology and Management at Washington State University
Washington State University
Episode: Season 6, Episode 1 - Introducing SPARC and Early Season Maintenance

Host

Don Seifert
Host of the Dr. Tree Fruit and Don podcast

Talking Points

Recent interactions between the hosts and their guests.

Season 7, Episode 1 - Introducing Dr. Sara Serra
Q: What are your main research priorities for the next couple of years?
My top priorities include developing new pruning techniques, optimizing harvest windows, and evaluating rustic for fruit trees.
Season 7, Episode 1 - Introducing Dr. Sara Serra
Q: How did you become interested in botany or plant sciences?
I always loved science and biology, and when it was time to choose my field, I had no doubts it would be plants.
Season 6, Episode 8 - Windy Days, Disease Pressure and Post-Bloom Sprays
Q: What are some pieces of advice if I really need to get something on, but I don't have a great timing window to do it because it's been 20 mile an hour winds?
Utilize technology to time your sprayings when the wind is at its lowest, and consider adding drift retardants to your tank mix.
Season 6, Episode 7 - Blooms, Blights, and Bugs
Q: What pesticide protections are recommended right now against fire blight?
Streptomycin plus Regulaid is recommended to protect against fire blight, ideally along with Actigard as a plant defense elicitor to enhance the protection.
Season 6, Episode 7 - Blooms, Blights, and Bugs
Q: Are there some cultivars that are more tolerant or durable to those environmental fluctuations during that flower bud initiation time?
A good question without a definite answer yet, as even for the most common varieties we lack comprehensive data on all cultivars' responses to environmental stress during bud initiation.

Audience Metrics

Listeners, social reach, demographics and more for this podcast.

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Frequently Asked Questions About Dr. Tree Fruit and Don

What is Dr. Tree Fruit and Don about and what kind of topics does it cover?

This show provides practical, field-facing guidance for commercial tree fruit production, with frequent Penn State Extension and university experts weighing in on current orchard conditions, pest and disease pressures, pruning and crop load management, spraying timing, and harvest considerations. Episodes routinely feature updates from respected pomology and horticulture specialists, plus host-led discussions on weather impacts, regulatory issues, and upcoming trainings or field days. A notable strength is the hands-on, timing-driven approach, including concrete spray schedules, monitoring practices, and decision-making tips tied to specific pests (codling moth, apple moths, brown rot, bitter rot) and diseases (apple scab, fire blight). The... more

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Which podcasts are similar to Dr. Tree Fruit and Don?

These podcasts share a similar audience with Dr. Tree Fruit and Don:

1. The joe gardener Show - Organic Gardening - Vegetable Gardening - Expert Garden Advice From Joe Lamp'l
2. The Way I Heard It with Mike Rowe
3. The Ramsey Show
4. The Ezra Klein Show
5. The Daily

How many episodes of Dr. Tree Fruit and Don are there?

Dr. Tree Fruit and Don launched 6 years ago and published 91 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.

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What guests have appeared on Dr. Tree Fruit and Don?

Recent guests on Dr. Tree Fruit and Don include:

1. Dr. Greg Krawcheck
2. Dr. Sean Kumar
3. Sean Kumar
4. Sarah Zost
5. Lee Kalcsits

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