Archive for the ‘Extension’ Category

2016 MSU Weed Tour = June 29th!

Monday, May 23rd, 2016

E. Hill

Mark your calendars for the upcoming MSU Weed Tour. Details about the tour can be found the newsletter “2016 MSU Weed Tour” by Drs. Christy Sprague and Bernie Zandstra. We’re expecting a great turn out as usual to see the latest and greatest in weed science research and recommendations from the Departments of Plant, Soil and Microbial Sciences and Horticulture.



New Extension Publication: “Tips for collecting weed seeds: Ensure your resistance sample gets tested”

Tuesday, March 29th, 2016

-E. Hill

In an effort to increase the quality of weed seed samples sent to MSU Diagnostic Services for herbicide resistance screening we have developed this brief, all-color publication”Tips for collecting weed seeds“. The most frequent weeds submitted include: horseweed/marestail, pigweeds/amaranths (Powell, Palmer, Redroot, Waterhemp), common ragweed, and common lambsquarters. Following the tips in this guide will give us the best chance of getting seedlings to germinate for the greenhouse bioassay.

Stay tuned for the results of this year’s herbicide resistance screening (with 47 samples submitted)!


2015 Integrated Crop and Pest Management Update scheduled

Tuesday, October 20th, 2015

E. Hill

Mark your calendars for Tuesday, December 15th to attend the 2015 Integrated Crop and Pest Management Update at the MSU Pavillion. More details and online registration can be found in Michigan State University Extension link below.

2015 Integrated Crop and Pest Management Update

Collect weed seeds now if resistance is suspected

Friday, October 2nd, 2015

-E. Hill

If you suspect that you have herbicide resistant weeds in your fields, now is the time to collect seed and have it tested. This week I began my new role as the Weed/Herbicide Diagnostician with MSU Diagnostic Services. One of my main responsibilities is continuing the herbicide resistance screening that has been conducted in Christy Sprague’s laboratory the past several years. The Michigan Soybean Promotion Committee has agreed to continue to suplement the costs of this testing for soybean growers so that they may submit samples free of charge. Species that are eligible for the free testing include amaranth species (Palmer amaranth, common waterhemp, Powell amaranth), maretail/horseweed, common and giant ragweed, and common lambsquarters. A minimum of 5 plants with mature seed present should be collected, stored in a sealed paper bag and mailed or brought into Diagnostic Services (578 Wilson Rd., Room. 107, East Lansing, MI 48824-6469). Please also send in a completed form with your submission (MSPC resistance screen form).

The turn around time for results can  be 2-3 months to allow us to clean samples, break seed dormancy, grow and treat seedlings in the greenhouse, and assess control.

Stay tuned as I develop some photos and other materials to ensure the best collection of samples.


Recently this topic has been in the MI news:

Consider collecting seeds from weed escapes if you think they may be resistant to herbicides  -MSUE, Bruce MacKellar

Also,  stay tuned for a video that Christy Sprague and I recorded with MSPC this week further detailing detecting and confirming resistance.



2015 Weed Tour Success

Wednesday, July 15th, 2015

-E. Hill

This year’s Weed Tour may have been one for the record books. There were upwards of 300 participants! When I wasn’t driving tractor or visiting with participants I managed to grab just a few photos to share…please enjoy! Also, if you were at the tour and did not receive a tour book because we ran out, please let me know via email ( and we will try to get you a copy. All the same information will be available at the end of the season online when we post our “Annual results“.