Meet the Team

Dr. Thomas Green

Madison, WI
Project Director
Email 608-232-1425

Tom managed an apple orchard early in his career and became captivated by the pest management challenges faced by growers. This led to pursuit of a career in IPM, working initially in the Massachusetts Apple IPM Program. In 1980, he founded an IPM supply business subsequently purchased by GEMPLER’S, Inc., a national agricultural product supplier. He is a Certified Crop Advisor and NRCS Technical Service Provider. He has served on the US EPA Pesticide Policy Dialogue Committee, chaired the International IPM Symposium Steering Committee, and currently serves as board chair of the Entomological Foundation, and member of the Stakeholder Committee for the USDA North Central IPM Center. Dr. Green holds a Ph.D. in entomology from the University of Massachusetts.

Mark Adelsperger

Sycamore, OH
Resource Management Specialist
Email 419-294-8960

Mark has a degree in Business Administration from Tiffin University in Tiffin, Ohio and a background in agriculture, sales and customer service. Mark’s immersion in agriculture and enjoyment of the rural lifestyle reinforces his viewpoint that farming is an ever-evolving way of life. Communications with ag retailers is a must in accomplishing our objectives. Mark strives to provide support information to help ag retailers maintain profitability while at the same time continuing to be conscientious about water quality.


Caitlin Leahy

Madison, WI
Project Manager
Email 608-232-1425

Caitlin obtained her B.S. in environmental studies with an emphasis in policy at the University of Wisconsin-Oshkosh. Her past research includes tropical ecosystem resource management in different regions of Belize, and alternative energy systems using biodigesters at the Viessmann Academy in Allendorf, Germany. Caitlin has a special interest in natural resource management with a focus on agriculture, and wishes to extend her knowledge through continued education and travel. In her personal life, Caitlin enjoys daily hikes with her dog, Gracie, the theater, art museums, international travel, and primitive camping.

Julia Freuck

Madison, WI
Project Coordinator
Email 608-232-1425

Julia received her B.S. in Environmental Science and certificates in Environmental Studies and Global Health from the University of Wisconsin-Madison in 2017. Before joining the IPM Institute, Julia interned for Clean Lakes Alliance where her passion for improving environmental health and agricultural sustainability was enhanced. Her past experiences have strengthened her interest in the connection between environmental and human health. In her personal life, Julia enjoys reading, hiking, kayaking and being outdoors.

Michele Wigern

Kiester, MN
Resource Management Specialist
Email 507-382-0203

Michele earned a B.S. in Environmental Management from South Dakota State University and has worked in conservation for the past eight years in south central Minnesota. Most recently, Michele worked with agricultural producers to implement conservation practices to increase soil health, yields and profits. Outside of work Michele enjoys golfing, fishing and keeping up with her two very active boys.

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