Our Team

Tom Green, Ph.D.

President, Founder, Evaluator for pest management providers and facilities

Tom has been a national leader in market-based sustainability and Integrated Pest Management (IPM) initiatives for more than thirty years. He co-founded and directs the IPM Institute and served as a director of the Entomological Foundation from 2009 to 2015, and as a vice-president and president from 2011-2014. He was awarded the Foundation’s Medal of Honor in 2015. He has been a member of the Entomological Society of America since 1983 and served on the Presidential Committee on Science Policy and the Presidential Committee on Awards. He served on the Wisconsin Pollinator Protection Plan stakeholder development committee and currently serves on the Minnesota Pollinator Health and Crop Production Task Force. Dr. Green is a Certified Crop Advisor and a USDA NRCS-certified Technical Service Provider.  He holds a Ph.D. in entomology from the University of Massachusetts and has authored or co-authored more than 100 publications and presented at more than 250 professional and industry events.

Darryl Forest 

Evaluator for pest management providers and facilities

After a three-year stint as a field artillery officer for the U.S. Army, Darryl attended Oklahoma State University where he graduated with a master’s degree in medical and veterinary and entomology. After graduating, Darryl rejoined the military as an entomologist. Darryl retired from the U.S. Army in 2016 after 20 years of active duty. Currently, Darryl works for the National Gallery of Art as their staff entomologist where he oversees preservation of priceless works of art, protects the health and safety of the visitors and employees and applies IPM techniques to protect the gallery structures from insect damage. Darryl conducts evaluations for pest management providers and facilities on the east coast.

Ronald (Ron) Griffin 

Evaluator for pest management providers and facilities

Ronald (Ron) Griffin currently owns Pest Control Mindset Inc. Ron has participated in the pest management industry for more than 35 years. He has evaluated, recommended and assisted in decision making for pest management providers in New York state. Ron has a commercial license issued by the States of New York, New Jersey and Delaware in Demonstration and Research. Ron is a New York State Department of Environmental Conservation training instructor. Ron focuses on building strong relationships with his clients through regular and clear communication of IPM concepts and strategies. Ron conducts evaluations for pest management providers and facilities on the east coast.

Amanda Arnold

Evaluator for landscaping companies and landscapes

Amanda Arnold graduated from Ball State University with a bachelor’s in landscape architecture and a Bachelor’s of science in history. Amanda currently owns her own landscape architecture business, PlanIt Landscape Perspectives, LLC, concentrating on eco-focused design and education for public and private works. She is a licensed Landscape Architect, carries a LEED AP with a BD+C specialty and SITES AP certification and is an Adjunct Faculty at College of DuPage. Her past design-build experience has helped her focus her passion and enhance native and natural spaces, management and educational engagement. Amanda conducts evaluations for landscaping companies and landscapes.

Ryan Anderson

Manager, Evaluator for landscaping companies and landscapes

A 2016 National Academies of Sciences, Engineering, and Medicine Christine Mirzayan Science & Technology Policy Fellow, Ryan has extensive experience advancing science-based solutions in urban and residential communities. Ryan has a Masters of Sustainable Solutions from Arizona State University and holds a dual bachelor’s degree in biology and electronic journalism from Butler University. Ryan can be reached at 773-878-8245 or randerson@ipminstitute.org.

Lorelei D’Huyvetter


Lorelei graduated from the University of Wisconsin-Madison with a B.S. in horticulture. She grew up on an organic dairy and crop farm in Wisconsin, which fostered a love for the land and encouraged her to go into the environmental field. She coordinates the on-site evaluations for facilities across the globe to achieve and maintain certification. Lorelei can be reached at 608-502-7304 or ldhuyvetter@ipminstitute.org.

Green Shield Certified is operated by the IPM Institute of North America, a 501(c)3 nonprofit organization recognized by the U.S. Environmental Protection Agency for its expertise and accomplishments in promoting integrated pest management.