Our Team

With more than 140 years of combined experience, the Integrated Ag Services team brings a wealth of industry knowledge to our farmers. We are dedicated to staying abreast of new products, technologies and research to provide expert advice. In fact, six of our team members have committed to undergoing extensive continuous education and training to serve as Certified Crop Advisers. Contact Us if you would like to reach a member of our team.

Interested in joining the Integrated Ag Team?  Check out our careers page for open positions.

Dave Scheiderer

Dave Scheiderer, Owner, CCA

Dave grew up near Marysville, Ohio, surrounded by crop and livestock agriculture. 

For as long as Dave can remember, farming and agriculture have been a part of his life. It was no surprise to friends and family when he decided to pursue a bachelor’s degree in Agricultural Business from The Ohio State University. 

Dave's work in the ag production business began in 1980. In 1990, he started Integrated Ag Services with his wife, Zita, and is grateful that IAS is still going strong after all these years.

He enjoys the challenge of trying new things and then seeing the results of each crop year, seeing what has worked and what hasn’t. He is also a partner with his brother, Gary, in a corn and soybean crop farming operation, which allows him to test all of his crazy ideas. 

He has been married to his wife Zita since 1989. They have three adult daughters, two son-in-laws, a granddaughter, and a grandson.

In his spare time, Dave loves to be with his family and occasionally golf.

Alicia Barterian

Alicia Barterian, Agronomic Consultant, CCA

Alicia grew up in Central Pennsylvania and spent most of her childhood on her uncle’s dairy farm. Her passion for agriculture came from her father, who was her agriculture teacher and FFA Advisor. She received her bachelor’s degree in Agronomy from Penn State University, followed by her master’s degree in Crop and Soil Sciences at Michigan State University.

 After college, Alicia worked as an agronomy educator for Penn State Extension in Western Pennsylvania for two years. She then relocated to Ohio and served as an agronomist for BASF Crop Protection for nearly four years. She is excited to continue working with growers throughout Ohio and providing agronomic solutions and services in her position with Integrated Ag Services.

 Alicia and her husband, Justin, live in Columbus with their young daughter and energetic Australian Shepherd. In their free time, they enjoy visiting family and friends, traveling, and the great outdoors.

JD Bethel

JD Bethel, Agronomic Consultant, CCA

JD is from Mechanicsburg, Ohio where he grew up on a family farm.  He attended The Ohio State University where he received a bachelors degree in Agricultural Education and a masters degree in Weed Science.  

Prior to joining Integrated Ag Services, JD worked 4 years at The Ohio State University where he managed the Ohio Soybean Performance Trials.  

JD and his wife Wendy live in Mechanicsburg, where they enjoy being outdoors, travelling, and visiting with family. 

Evan Delk

Evan Delk, VP of Sales & Marketing, CCA

Evan grew up in South Charleston, Ohio, surrounded by many family farms and close friends. He was heavily involved in 4-H and FFA projects, including showing hogs and beef cattle. 

When growing up, if someone asked him what he wanted to do, he always replied that he wanted to be a farmer. Evan worked on family-owned/operated farms for eight years, during which time he learned to drive tractors, trucks and semis. Upon graduating from Southeastern High School in South Charleston, Ohio he went to work for a large corn/soybean operation just up the road from where he lived.

Evan studied agricultural business at Clark State Community College and began his internship at Integrated Ag Services in Spring of 2009. Upon graduating in 2010 with an associate’s degree in Agricultural Business, he was hired full time to run the soil sampler, covering most of Ohio and parts of Indiana. He was heavily involved in troubleshooting and diagnosing the automated soil samplers when they first hit the field back in 2011.

Evan recently transitioned to VP of Sales and Marketing where he leads a team of 5 experienced CCA crop consultants.

Evan enjoys working with hardworking, successful farmers. He likes helping farmers become more profitable and more successful, increasing their bottom line. Evan shared that when things go good or bad, he gets excited or upset along with the farmer, as if it were his own operation. 

Evan currently lives in the house where he grew up on a small farm located in Springfield, Ohio, with his wife, Nicole, his son Paxton and their lab, Willie. He currently farms corn and soybeans on the 12 acres of land that surrounds their house to experiment new farming technologies to help become more experienced with what is available to farmers today. He likes to put on his “farmer hat” to gain more experience and sit on the other side of the table outside of the crop consulting. In his spare time, he enjoys doing water sports, hanging out with his friends and family, hunting, snowboarding, and traveling to see his sisters and their families who both live on the west coast.

Ryan King

Ryan King, Agronomic Consultant

Ryan lives his life by this quote from John Maxwell, “Nobody cares how much you know, until they know how much you care.”

Ryan’s primary responsibility is to develop and launch new dealer networks. He also will work one-on-one with farmers in the Ohio area to develop a plan that creates the highest efficiency and sustainability. He will work with dealers to provide the most advanced agronomic services IAS offers while helping customers meet their goals.

Diane Joseph

Diane Joseph, Office Manager

Diane grew up in rural Marysville, Ohio, on a small farm. She was involved with 4-H and the county fair.  

Diane has worked with Integrated Ag Services since 2004 and is currently the office manager.

Diane enjoys the continuously evolving technology of agriculture. 

She is married to her husband Andy. They have two grown daughters and three wonderful grandchildren. In her free time, Diane enjoys being outdoors and antiquing.

Cory Miller

Cory Miller, Field & IT Tech

Cory grew up in Decatur, Indiana, where he spent many hours with his grandpa on his farm, and also on his friends’ farms. 

Cory received a bachelor’s degree in Horticulture Production & Marketing from Purdue University in West Lafayette, Indiana. 

Cory liked the technology advancements in agriculture and, after 20 years in horticulture, he wanted to learn something new. He enlisted into the U.S. Navy and gained experience in computers and radio, and soon after, he was hired by Integrated Ag Services in 2015 to help advance the automated soil sampling process. 

As a Field & IT Tech, Cory spends his day conducting soil samples and scouting, and working on computer projects between seasons. He enjoys the variety of work, problem solving and applying new technologies to agriculture.

As a U.S. Naval Reserve, Cory spends his spare time at the Naval Operation Support Center. When not fulfilling his reservist duties, he enjoys spending time with friends and family.

Racine Ramsey

Racine Ramsey, CPGG Operations Manager

After graduating from Fairbanks High School, Racine continued her education at Wilmington College. There, she received her bachelors degree in Agricultural Business in 2012 and also met her husband, Andrew. 

Racine has worked in the agriculture industry since 2012 and has been with Integrated Ag Services since September of 2015. She enjoys working with farmers to help them meet the growing demand of agriculture and the challenges that come along with it.  

Racine and Andrew welcomed their first child, Ryker, into the world July of 2018. In her spare time, she loves spending time with her son, crafting, and fishing alongside of her husband.

Zita Scheiderer

Zita Scheiderer, Accounting Support

Zita grew up in Champaign County, Ohio, and is the daughter of a dairy farmer and a school teacher. 

Zita received an associate degree in Business Administration from Urbana University. She married Dave Scheiderer in 1989, and in 1990, they started Integrated Ag Services. She worked with Dave in the business, performing accounting/office duties, digitizing soil maps and running samples to the soil lab from 1990 to 2001. Zita gave up her duties at Integrated Ag as their three daughters entered school and became involved in many activities.  

Zita has also worked as the accounting clerk at Union Rural Electric, and as the leasing agent for Connolly Construction Company.  

Zita rejoined the Integrated Ag Services staff in January of 2016. She enjoys renewing her relationship with the Integrated Ag staff and customers, and learning about the new changes in precision agriculture that have occurred during her absence.

Outside of work, Zita enjoys reading and spending time with her family. She also enjoys babysitting her two wonderful grandchildren.

Mary Wilson

Mary Wilson, Lab Manager

Mary grew up near London, Ohio. One of her favorite memories in agriculture is riding in the tractor with her dad as a little girl.

Mary joined the Integrated Ag Services team in 2013. On the job, she enjoys the details involved with making sure the lab is running smoothly, using her creativity, and being a part of the constant innovation and improvements taking place in agriculture.

Currently, Mary and her husband Barrett live near Plain City, Ohio. In her free time, she enjoys spending time with family and learning new things.

Skyler Foos

Skyler Foos, ​Agronomic Consultant/Field Technician​

Skyler currently lives on a hog and grain farm in Richwood, Ohio. 

Skyler attended Ohio State University Agricultural Technical Institute in Wooster, where he obtained an Associates degree in Agronomy. He then transferred to Ohio State University and completed his Bachelors degree in Agronomy. After graduation he worked as a Research Agronomist for Agritech Research, managing corn plots for Ohio, Michigan, and Indiana. 

Outside of work, Skyler enjoys spending time with loved ones as well as traveling and being on the water.     



Mark Bugg

Mark Bugg, Agronomic Consultant

Mark Bugg grew up in Richwood, Ohio, and currently resides in Marysville. He grew up on a farm and is still a part time farmer today. Mark will work with farmers to develop a plan that creates the highest efficiency and sustainability. In this position, he will strive to reduce the number of negative effects on crops, implement technology to provide expert advisement and increase overall yield. 

Mark received his bachelor's degree in agriculture business and applied economics from The Ohio State University where he also minored in crop science. Prior to joining the Integrated Ag Services team, he worked for over 10 years in the seed industry. He worked with a few seed companies in Indiana, Illinois and Ohio before joining IAS.