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Meet our Team!

Alongside our full-time Principal Investigators, we hire a number of season Research Technicians to assist with our program. 

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Mike Sharman was born and raised in Guelph, Ontario, Canada.  Mike received a Bachelor of Science Degree in Honours Agriculture from the University of Guelph with a focus on plant and soil science.  Mike also has his Ontario Certified Crop Advisor Certificate.

Mike has been in agricultural research since 2014 and has managed efficacy and crop residue trials in predominantly field crop systems. Along with completing research trials, he is responsible for the acquisition of and maintenance required for the fleet of research equipment. 

Aside from keeping busy with research, Mike also manages his cash cropping business and runs the family farm. 

Raised in rural Branchton, Ontario on a cash crop farm, plants played a large part in Jack Jarvie’s upbringing. Jack graduated from the University of Guelph in 2020 after obtaining his Bachelor of Science in Honours Plant Science. Jack then spent a year at Niagara College getting a Graduate’s Certificate in Commercial Cannabis Production.

Since 2017, Jack has worked in agriculture assisting the undertaking of a variety research trials including cash, vegetable, and fruit crops as well as residue and soil dissipation studies. He also became SQA certified in GLP in 2022 to better assist the Tall Pines team. Jack is also honoured to be the recipient of TIME Magazine’s 2006 Person of the Year award.

Colleen Szentimrey

Colleen Szentimrey was born and raised in rural Branchton, Ontario, Canada to an agriculturally rooted family.  Colleen is a graduate of the University of Guelph with a Bachelor of Science. She started in agricultural research in 2012 and has managed efficacy and residue. Colleen has focused on horticultural cropping systems, residue trials, and several soil dissipation studies. ​​

Colleen is our Facility Manager and Archivist and keeps the business running at an administrative level.


Jack Jarvie


Co-Founder & Research Agronomist

Mike Sharman

Co-Founder & Research Agronomist

Research Agronomist

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