Michigan Vegetable Crop Report – September 3, 2025

Sep 08, 2025

By Benjamin Phillips and Benjamin Werling et.al

Weather

For the past week, temperatures were 6-11 degrees Fahrenheit below normal. Precipitation ranged from 0.1-1 inches depending on location. Degree day totals are behind normal in the central Upper Peninsula and up to two weeks ahead in the Lower Peninsula. Many annual crops may finish earlier than normal due to degree day surpluses, and senescence may happen faster too where soils are dry.

Check out Jeff Andresen’s weekly weather forecast:

  • Showers and thunderstorms spreading northwest to southeast across the state Wednesday, Sept. 3. Cloudy and much cooler with scattered showers possible Thursday through Saturday. Cool and dry Sunday through early next week.
  • Precipitation totaling less than 0.5 inches to up to 1.5 inches in northern Michigan.
  • High temperatures from the 70s to low 80s Tuesday, falling to the 50s and 60s by Thursday through this weekend. Lows generally in the 50s Wednesday falling to the 30s and 40s by Friday.
  • Medium range outlooks call for below normal mean temperatures during the next week followed by a warming trend by mid-month. Precipitation totals are forecast to remain at near to below normal levels.

Upcoming webinar series on immigration issues for farmers

Farm owners, managers and ag professionals are invited to attend the Immigration Essentials for Farm Employers Webinar Series this September. This free three-part event is designed to help agricultural employers confidently navigate immigration enforcement and workforce documentation.

See more information in the link below:

Immigration Essentials for Farm Employers Webinar Series

Michigan State University Extension seeks input from pesticide applicators and agribusiness on new EPA regulations

An  increasing number of pesticide labels require applicators to use the Bulletins Live! Two system to check for additional use limitations designed to protect endangered species and their habitats. Anyone applying agricultural pesticides, certified or not, should be aware of upcoming changes to pesticide labels across the United States. To best support pesticide applicators during the implementation of these new regulations, Michigan State University Extension is asking Michigan residents involved in agricultural pesticide regulation, sales or application to complete this brief survey:

Start Survey

Crop updates

Asparagus

The cooler weather halted disease severity value (DSV) accumulation at six sensors Michigan State University Extension is monitoring in Oceana and Mason counties, with 0-4 DSVs accumulating between Aug. 27-Sept. 2. A fungicide application would have been indicated for Monday, Sept. 2, if nothing had been applied since Aug. 11-19 (assuming a 15 DSV interval).

Carrots

White mold and Alternaria have been observed on carrots.

The cooler weather halted DSV accumulation at two sensors Michigan State University (MSU) Extension is monitoring in Oceana County, with 2-3 DSVs accumulating between Aug. 27-Sept. 2. A fungicide application would have been indicated for Monday, Sept. 2, if nothing had been applied since Aug. 14-16 (assuming a 15 DSV interval).

Source : msu.edu
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