Department of Plant, Soil and Microbial Sciences Weeds

• 

  2025 Status of herbicide-resistant weeds in Michigan

  Published on April 17, 2025
  Each year, new herbicide resistance cases are confirmed by MSU Plant & Pest Diagnostics.

• 

  Southwest Michigan field crops update – April 17, 2025

  Published on April 17, 2025
  A break in the rain resulted in fertilizer spreading, cultivating and even planting. Wheat is at Feekes 4-5, and powdery mildew started in lush stands.

• 

  Join MSU Extension’s April 24 Virtual Breakfast Series on recognizing herbicide resistance in waterhemp

  Published on April 10, 2025
  Correct identification for pigweed and waterhemp is essential for herbicide resistance management.

• 

  2025 Field Crops IPM course updated and available for growers

  Published on April 4, 2025
  Get an update on insect, disease, nematode and weed management with RUP credits included.

• 

  MSU Extension Virtual Breakfast series continues April 10 with corn and soybean planting considerations

  Published on April 2, 2025
  The Field Crops Virtual Breakfast Series continues April 10 with MSU Extension cropping systems agronomist Manni Singh discussing planting considerations for corn and soybean this spring.

View complete listing

• May 8

  Pesticide Applicator Core Review and MDARD Core Testing – 5-08-25 Hillsdale

  May 8, 2025 8:00AM – 5:00PM Check-in for the program is 8 to 8:30 a.m. MSU Extension Hillsdale County - 20 Care Drive, Suite B, Hillsdale, MI 49242

  A review of the Core Pesticide Applicators Manual to prepare for the MDARD Pesticide Applicators Certification Exam in the afternoon. THE CORE REVIEW IS MANDATORY TO PARTICIPATE IN THE IN-PERSON TESTING. Refreshments and light lunch will be served.

• May 13

  Pesticide Applicator Core Review and MDARD Core Testing – 5-13-25 MSU Pavilion

  May 13, 2025 8:00AM – 5:00PM Check-in for the program is 8 to 8:30 a.m. MSU Pavilion - 4301 Farm Lane Rd., East Lansing, MI 48824

  A review of the Core Pesticide Applicators Manual to prepare for the MDARD Pesticide Applicators Certification Exam in the afternoon. THE CORE REVIEW IS MANDATORY TO PARTICIPATE IN THE IN-PERSON TESTING. Refreshments and light lunch will be served.

• May 20

  Pesticide Applicator Core Review and MDARD Core Testing – 5-20-25 Gaylord

  May 20, 2025 8:00AM – 5:00PM Check-in for the program is 8 to 8:30 a.m. University Center - 80 Livingston Blvd., Gaylord, MI 49735

  A review of the Core Pesticide Applicators Manual to prepare for the MDARD Pesticide Applicators Certification Exam in the afternoon. THE CORE REVIEW IS MANDATORY TO PARTICIPATE IN THE IN-PERSON TESTING. Refreshments and light lunch will be served.

• May 28

  Pesticide Applicator Core Review and MDARD Core Testing – 5-28-25 Pontiac

  May 28, 2025 8:00AM – 5:00PM Check-in for the program is 8 to 8:30 a.m. Oakland County EOB Conference Center, 2100 Pontiac Lake Rd., Bldg 41W, Pontiac, MI 48328

  A review of the Core Pesticide Applicators Manual to prepare for the MDARD Pesticide Applicators Certification Exam in the afternoon. THE CORE REVIEW IS MANDATORY TO PARTICIPATE IN THE IN-PERSON TESTING. Refreshments and light lunch will be served.