College of Agriculture & Natural Resources Department of Horticulture

XV International Symposium on Plant Bioregulators in Fruit Production

 June 23-26, 2025
Intercontinental Hotel, Chicago, Illinois, USA 

Welcome to the 15^th International Symposium on Plant Bioregulators in Fruit Production. This symposium is organized every four years by ISHS Division Physiology and Plant-Environment Interactions of Horticultural Crops in Field Systems and ISHS Working Group Bioregulators in Fruit Production. 

We warmly invite you to join us in vibrant, downtown Chicago in the historic Intercontinental Hotel for a stimulating symposium on recent advances in the use of plant bioregulators in fruit production.

Registration for the symposium is open. Click on the Symposium Registration tile below to learn more about registration options, rates and to register.

The deadline for registration and booking lodging has been extended until Monday, June 9, 2025.

2025 Symposium Sponsors

We gratefully acknowledge the generous support of the sponsors of the 15^th International Symposium on Plant Bioregulators in Fruit Production. Their partnership plays a critical role in advancing scholarly dialogue, fostering collaboration, and supporting the mission of this event. We invite you to learn more about our sponsors.

This event is made possible through the generous support of The Martin and Judith Bukovac Endowment in Tree Fruit Physiology.

Platinum Sponsors:

Fine Americas, Inc. focuses on the development, manufacture and marketing of plant growth regulators (PGRs) for the agricultural, greenhouse ornamental and landscape markets and are a recognized center of excellence for PGR technology. We strive to improve our technology to meet the exacting demands of today’s quality-conscious growers in more than 40 countries worldwide. An ongoing program of investment designed to develop new products, new uses and enhance product value will further our reputation as a leader in the field of plant growth regulation.

Through our expertise in bioscience, we identify, develop, and introduce new products and solutions that help growers profitability sustain their land, protect the public from insect-borne disease, and preserve our forests.

Gold Sponsors:

Silver Sponsors:

The Michigan Apple Committee is a grower-funded nonprofit organization devoted to marketing,
education and research activities to distinguish the Michigan apple and encourage its consumption in
Michigan and around the world. For more information, visit MichiganApples.com. 

The Department's mission is to prepare our students for horticulture-related careers in science and business. This includes making new discoveries in the plant sciences; promoting the use of plants and food for improved human health and a safe environment; improving the characteristics, quality and availability of horticultural products; and strengthening the competitive position of the world's horticultural industries.

Nutrien is a leading global provider of crop inputs and services. We operate a world-class network of production, distribution and ag retail facilities that positions us to efficiently serve the needs of farmers. We focus on creating long-term value by prioritizing investments that strengthen the advantages of our business across the ag value chain and by maintaining access to the resources and relationships with stakeholders needed to achieve our goals.

and Financial Contributions From: