Guidelines for applying Stadium to potato tubers

Willie Kirk, Michigan State University Extension, Department of Plant, Soil and Microbial Sciences; David Ross, Syngenta Crop Protection; Phillip Wharton and Nora Olsen, University of Idaho -

A new product, Stadium, is now registered as a pre-storage treatment for managing Fusarium dry rot and silver scurf in potato storage.

Potatoes are susceptible to a variety of storage pathogens, including Fusarium dry rot (Fusarium sambucinum), silver scurf (Helminthosporium solani), late blight (Phytophthora infestans), Pink rot (Phytophthora erythroseptica), Pythium leak (Pythium ultimum) and black dot (Colletotrichum coccodes). Current recommendations for potato storage diseases include sanitation and exclusion as the primary controls for these pathogens in storage facilities. Few fungicides are registered for direct application to tubers for control of these important pathogens and few compounds are available for potato tuber treatment in storage, including chlorine-based disinfectants such as, sodium hypochlorite, calcium hypochlorite and chlorine dioxide. 

Several commercial storage products Phostrol (sodium, potassium and ammonium phosphates), and Storox  (hydrogen peroxide/peroaxyacetic acid mixture) are registered for control of storage pathogens. Recently, Stadium a new product from Syngenta Crop Protection was registered for use as a pre-storage treatment for management of Fusarium dry rot and Silver Scurf in storage. Stadium is a three way mixture of azoxystrobin (Quadris), fludioxonil (Maxim) and difenoconazole (Inspire) and the application rate is 1.0 fl. oz. per 20 cwt (ton) of potato tubers carried in 0.5 gal H2O per ton of tubers. Results from trials at MSU and University of Idaho show that Stadium provided effective disease control. Please view How to achieve optimum coverage with Stadium on potato tubers entering storage for guidance.

This article was published by Michigan State University Extension. For more information, visit https://extension.msu.edu. To have a digest of information delivered straight to your email inbox, visit https://extension.msu.edu/newsletters. To contact an expert in your area, visit https://extension.msu.edu/experts, or call 888-MSUE4MI (888-678-3464).

Did you find this article useful?

You Might Also Be Interested In

Tag List
  • agriculture,
  • msu extension,
  • potatoes,
  • vegetables
  • follow us on youtube
  • follow us on linkedin
Michigan State University
  • Spartans Will.
  • © Michigan State University

MSU is an affirmative-action, equal-opportunity employer, committed to achieving excellence through a diverse workforce and inclusive culture that encourages all people to reach their full potential.

Michigan State University Extension programs and materials are open to all without regard to race, color, national origin, gender, gender identity, religion, age, height, weight, disability, political beliefs, sexual orientation, marital status, family status or veteran status. Issued in furtherance of MSU Extension work, acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture. Quentin Tyler, Director, MSU Extension, East Lansing, MI 48824. This information is for educational purposes only. Reference to commercial products or trade names does not imply endorsement by MSU Extension or bias against those not mentioned.

The 4-H Name and Emblem have special protections from Congress, protected by code 18 USC 707.

We comply with the Federal Trade Commission 1998 Children’s Online Privacy Protection Act (COPPA).