Potato Research Library

White Mold

White mold is caused by the fungus Sclerotinia sclerotiorum.

Information

The fungus can survive for several years in the soil as hard black bodies called sclerotia. This fungus can also infect dry beans, canola, and over 400 other plant species.

Videos

Resources & Downloads

Potential for Foliar Applications of Cholorothalonil and Mancozeb to Increase Incidence of White Mold of Potato

2014 Potato Expo White Mold Poster

Handouts from the 2021 Miller Research Potato Pest Management Seminars

Miller Research LLC held its annual potato pest management seminar as a series of virtual meetings on February 16, 18, 23, and 25, 2021. Thank you to all who attended, participated, and provided feedback.

Common Pests of Potatoes

I recently had the opportunity to speak at the Utah State University Vegetable IPM Winter Webinar Series (January 20, 2021). Nick Volesky and I talked about common insect and disease problems of potatoes.

Potato Disease Quiz

The answers are in! For those attending the Idaho Potato Conference and participating in the Disease Quiz, see how you did!

Handouts from the Miller Research Potato Pest Management Seminar

The 2020 Miller Research Potato Pest Management Seminar was held on January 28 in Rupert, ID. Handouts from the presentations can be found here.

White Mold Management in Potato

Fungicide choice, application method, and timing of application are important in managing white mold of potato. Multiple fungicides are available for managing white mold in potato.

Effect of Protectant Fungicides on White Mold in Potato

The use of protectant fungicides can increase the incidence of white mold in potatoes. Protectant fungicides such as those containing chlorothalonil (e.g. Bravo) and mancozeb (e.g. Manzate) have the potential to increase white mold severity in potato if a fungicide...