The ABCs of Foliar Disease in Greenhouse & Nursery Crops ft. Janna from Envu

2025-09-01

This episode includes critical information for both nursery and greenhouse producers! To discuss this episode’s topic, host Bill Calkins was joined by a fantastic guest from Envu—Dr. Janna Beckerman—who’s an experienced plant pathologist at heart and wanted to discuss three key diseases commonly encountered in greenhouse and nursery crop production. Conveniently for the podcast title, these diseases begin with the letters A, B and C—anthracnose, Botrytis and cercospora. In this episode, the conversation starts with a brief recap of some diseases Dr...

This episode includes critical information for both nursery and greenhouse producers!

To discuss this episode’s topic, host Bill Calkins was joined by a fantastic guest from Envu—Dr. Janna Beckerman—who’s an experienced plant pathologist at heart and wanted to discuss three key diseases commonly encountered in greenhouse and nursery crop production. Conveniently for the podcast title, these diseases begin with the letters A, B and C—anthracnose, Botrytis and cercospora.

In this episode, the conversation starts with a brief recap of some diseases Dr. Beckerman saw a lot of in the spring, like rusts and Pythium and then the conversation moved quickly to the topic at hand—foliar diseases. Bill and Janna took the three ABCs in order talking through the main crops impacted by each one, symptoms to watch for and control methods. Although Dr. Beckerman mentioned one of Envu’s flagship fungicides, Broadform (a unique chemical class with two modes of action to control more than 50 pathogens), her rotation recommendations and application best practices were extremely in-depth and user-friendly. She also went through strategies to mitigate the risk from these three diseases using good sanitation practices and greenhouse and nursery environmental management.

Bill and Janna closed out the conversation with the importance of resistance management—a topic that cannot be overstated. Keeping our toolboxes full and giving all growers the best chance for controlling diseases (and insect/mite pests) requires diligence and intelligent approaches to chemical rotation and application.

You’ll want to listen all the way to the end of this episode, because Dr. Beckerman is a true expert and offers countless tips and tricks to help you and your production team up the game season after season.

Resources:

Envu’s Ornamentals Segment Website: https://www.envu.com/segments/ornamentals

Envu’s Products for the US Market: https://www.us.envu.com/ornamentals

Envu’s Products for the Canadian Market: https://www.ca.envu.com/greenhouse-and-nursery

Broadform Fungicide Product Information: https://www.us.envu.com/ornamentals/po/products/broadform

Comments (3)