The Focus on Potato website has just posted a 15-minute webcast titled "Black Dot Root Rot of Potato."

The online presentation by Barry Jacobsen, professor and Extension Plant Pathologist at Montana State University, provides an overview of the fungal disease and options for controlling it, according to a news release.

Losses from black dot can range from 10 percent to 20 percent among common cultivars to up to 40 percent in some experiments.

The presentation is designed for consultants and growers alike.

To view the presentation, click here.

To view other presentations on Focus on Potato, visit

The Focus on Potato website is maintained by the Plant Management Network, a nonprofit online publisher taht is jointly managed by the American Society of Agronomy, American Phytopathological Society and Crop Science Society.