Marilyn Thelen
thelen22@msu.edu
Telephone: 517-432-2965
Fax: 989-224-5244
MSU Extension
Agriculture & Agribusiness Associate Director
Associate Director, Agriculture and Agribusiness
Coverage Area
Alcona County, Alger County, Allegan County, Alpena County, Antrim County, Arenac County, Baraga County, Barry County, Bay County, Benzie County, Berrien County, Branch County, Calhoun County, Cass County, Charlevoix County, Cheboygan County, Chippewa County, Clare County, Clinton County, Crawford County, Delta County, Dickinson County, Eaton County, Emmet County, Genesee County, Gladwin County, Gogebic County, Grand Traverse County, Gratiot County, Hillsdale County, Houghton County, Huron County, Ingham County, Ionia County, Iosco County, Iron County, Isabella County, Jackson County, Kalamazoo County, Kalkaska County, Kent County, Keweenaw County, Lake County, Lapeer County, Leelanau County, Lenawee County, Livingston County, Luce County, Mackinac County, Macomb County, Manistee County, Marquette County, Mason County, Mecosta County, Menominee County, Midland County, Missaukee County, Monroe County, Montcalm County, Montmorency County, Muskegon County, Newaygo County, Oakland County, Oceana County, Ogemaw County, Ontonagon County, Osceola County, Oscoda County, Otsego County, Ottawa County, Presque Isle County, Roscommon County, Saginaw County, Sanilac County, Schoolcraft County, Shiawassee County, St. Clair County, St. Joseph County, Tuscola County, Van Buren County, Washtenaw County, Wayne County, Wexford County
Marilyn Thelen Is a Senior Educator with Michigan State University Extension. Thelen specializes in integrated crop and livestock systems. She has conducted field research and provided programming in manure management, field risk assessment, nutrient management as well as low disturbance tillage systems and cover crops. As a partner in the family farm, Thelen has observed the impact of extreme weather events and has seen how conservation practices can impact the cropping system.
Tags: institute director - agriculture & agribusiness, msu campus, msu extension
Authored Articles
- MSU Agriculture Innovation Day: Focus on Fruit and Vegetable Technologies offers credits for ag prof, April 30, 2018
- When seconds count: Respectfully share the road during fall harvest, October 3, 2017
- Evaluating hail-damaged crops - Part 1, June 23, 2017
- Evaluating flood-damaged crops – Part 2, June 23, 2017
- Evaluating wind-damaged crops - Part 3, June 23, 2017
- Finding the right mix for soil health, May 17, 2017
- Only you can prevent combine fires, October 7, 2016
- Above normal temperatures accelerate corn development, September 13, 2016
- MSU Agriculture Innovation Day: Focus on Soils brings experts to Frankenmuth on Aug. 24, August 11, 2016
- Soil compaction is a below-ground yield robber, July 19, 2016
- Healthy soils provide foundation for healthy food production, April 12, 2016
- Field crops disease management discussed in upcoming webinar, January 29, 2016
- Monitor grain in on-farm storage, November 11, 2015
- Keeping nutrients in the field and out of the water, October 2, 2015
- What will a cool, 2015 growing season mean for corn?, July 13, 2015
- How to use phosphorus wisely, April 28, 2015
- Is it warm enough to plant corn?, April 28, 2015
- Handy farming Internet resources for the 2015 growing season, April 27, 2015
- Managing nitrogen in corn is a win-win, March 4, 2015
- Resilient Ag Conference begins August 5 in Ames, Iowa, July 25, 2014
- Keeping nutrients in the field and out of tile lines, July 25, 2014
- Safely moving farm equipment on public roads can be a challenge, June 5, 2014
- Filling in the blanks in a poor corn stand is not a good idea, May 30, 2014
- Planting corn past Memorial Day – what are the risks?, May 22, 2014
- Accurate identification is key to a successful pest management program, May 9, 2014
- Web-based corn growing degree day tool helps with planting decisions, April 24, 2014
- Suspect corn rootworm in continuous corn? Rotate!, April 22, 2014
- Farmers weigh in on nitrogen management, April 18, 2014
- Integrated pest management can save money, January 22, 2014
- Big data informs agriculture management decisions, January 20, 2014
- Evaluate changes in crop management and get results now, January 17, 2014
- Lodged corn may be a sign of a corn rootworm problem, September 24, 2013
- Will corn in Mid-Michigan reach maturity?, September 20, 2013
- Successful corn pollination is dependent upon many factors, July 26, 2013
- Managing fields after wheat harvest, July 25, 2013
- When to assess hail damage to crops, June 21, 2013
- Concerned about soil compaction? Stick a shovel in it!, June 19, 2013
- Planting delays are not unique to Mid-Michigan, June 6, 2013
- Managing the impact of rain on your field crops, June 6, 2013
- Assess the risk of planting corn in June, May 31, 2013
- Pest identification key to successful management, May 23, 2013
- Website and blog share crop research and engage Corn Belt farmers, May 8, 2013
- Brush up field scouting skills during the winter months, January 7, 2013
- Managing for the unknown: Markets and weather, January 4, 2013
- Climate, weather and farming: What is history telling us?, December 19, 2012
- Vertical tillage can be part of a cropping system, September 21, 2012
- Late-season scouting of corn and soybean fields is worth the effort, August 30, 2012
- Should I remove corn stover this fall?, August 28, 2012
- Wind damage in your corn field, July 9, 2012
- Drought: Implications for near-term management decisions in field crops, July 5, 2012
- Mortality composting to be demonstrated at MSU Ag Expo, June 28, 2012
- Scouting corn for western bean cutworms, June 25, 2012
- Scouting dry beans for western bean cutworms, June 25, 2012
- Evaluating corn and soybean stands and easy management tools, June 11, 2012
- Fall 2011 end-of-season corn stalk nitrate test can fine-tune your 2012 nitrogen program, May 31, 2012
- To till or not to till?, May 29, 2012
- When you’re scouting fields, go looking for trouble, May 17, 2012
- Western bean cutworm traps are popping up across Michigan, May 16, 2012
- Environmental conditions surrounding planting impact corn stand and viability, May 10, 2012
- Winter annuals are a concern in first cutting alfalfa, May 4, 2012
- Vertical tillage is tillage, April 13, 2012
- Farm women tailor plans to transition farms to the next generation, April 12, 2012
- Early identification of pests enhances management options, April 9, 2012
- A good corn crop starts with a good stand, April 3, 2012
- Business, succession, retirement and estate planning for farm women, January 4, 2012
- Nuggets of knowledge will be harvested from the 2011 field crop season, December 9, 2011
- How to identify soybean losses during harvest and make adjustments, October 13, 2011
- Mortality management featured at 2011 Ag Expo, June 30, 2011
- Twenty-two hundred visitors enjoy a farm fresh breakfast at Clinton County’s Breakfast on the Farm, June 22, 2011
- How late can you plant corn for silage?, June 7, 2011
- Location, location, location: Where to put the mortality compost pile, June 3, 2011
- Be a good neighbor when spreading manure, May 6, 2011
- Options for pasturing livestock near water in Michigan, May 5, 2011
- Manage fields to stop dollars from going down the drain, April 28, 2011
- The right soil conditions are worth the wait to plant, April 28, 2011
- Farm transition planning is a key element for multi-generation farms, March 31, 2011
- Vertical tillage offers both benefits and challenges for farmers, March 9, 2011
- Vertical tillage offers both benefits and challenges for farmers, March 1, 2011
- Temporary manure stacks should not cross the line, February 26, 2011
Authored Documents
- Industrial Hemp Production in Michigan, May 24, 2019