Tar Spot

Tar Spot and Fungicide Survey for Farmers and Crop Consultants

From Iowa State University Extension:

Planting is nearly here and folks are busy – but we are hoping you can help us with a tar spot and fungicide survey. This survey is the creative component for a Masters of Agronomy student, Kelsey Richie. She is hoping to get a better understanding of how tar spots may affect farmers’ decisions around fungicides. There are two surveys, one for farmers and one for crop specialists. If you could spare some time to complete the survey, it would be greatly appreciated.

The survey is only open until May 1st, so please give your input soon.

Tar Spot confirmed in Paulding County

Tar Spot was confirmed in Paulding County on September 7, 2021.

This week Tar Spot was confirmed in a cornfield in Paulding County. Below is a picture of what to look for when scouting for Tar Spot.  For more information on Tar Spot please see the links:

  1. https://crop-protection-network.s3.amazonaws.com/publications/tar-spot-filename-2019-03-25-120313.pdf 
  2. https://agcrops.osu.edu/newsletter/corn-newsletter/22-2021/tar-spot-showing-early-year-note-diagnosis
  3. https://agcrops.osu.edu/newsletter/corn-newsletter/2021-30/tar-spot-more-widespread-cross-state-ohio-2021

Thanks,

Tar Spot – What is it?

Figure 2. Tar spot symptoms on leaves both on the lower and the upper canopy. (Photo Credit: Darcy Telenko)

While I have been out in Paulding county scouting in the last week, I have not noticed any tar spot in our cornfields as of yet.  It could be there though as I am not walking in every field. I wanted producers to take note of what Tar Spot looks like and some monitoring from our neighbors in Indiana and information from a previous CORN New Article.  Continue reading Tar Spot – What is it? →