Triazole Sensitivity in a Contemporary Population of Fusarium graminearum from New York Wheat and Competitiveness of a Tebuconazole-Resistant Isolate

A Plant Disease article by Pierri Spolti and coauthors Emerson Del Ponte, Yanhong Dong, Jaime Cummings, and Gary Bergstrom was chosen as Editor’s Pick for May.

Spolti and colleagues describe the discovery in New York of the first tebuconazole-resistant field isolate of Fusarium graminearum reported in the Americas. The isolate was found to have the lowest sensitivity to tebuconazole ever documented for this pathogen, which causes Fusarium head blight (FHB). Following the application of tebuconazole, wheat plants inoculated with this isolate had more severe FHB and higher concentrations of the mycotoxin deoxynivalenol (DON) than plants inoculated with a tebuconazole-sensitive isolate. Moreover, preliminary assessments indicated that the resistant isolate was more competitive in these experiments.

Pierri Spolti was a visiting scholar in the Bergstrom Lab in 2012-2013.  He completed his Ph.D. at Universidade Federal do Rio Grande do Sul in Brazil in 2013 and he is currently conducting postdoctoral research at INRA in Toulouse, France.

Adapt-N Training Webinar Videos and Presentations Now Available

2014 Adapt-N Training Webinar: Nitrogen Concerns and Challenges – Why Adapt-N? from Cornell Field Crops on Vimeo.

Videos and the PowerPoint presentations from each session of the April 3rd, 2014 Adapt-N Training Webinar are now available at the Cornell Adapt-N Website.  In addition, a Q & A generated from the Webinar’s chat session is forthcoming.

Adapt-N Training Webinar – April 3rd

Adapt-N is a web-based tool that uses a dynamic simulation model, high-resolution climate data, and location-specific user inputs to generate precise, site-specific, weather-adaptive N fertilizer recommendations for corn. See our website, manual, or these resources for more on Adapt-N and its benefits to growers.

This half-day interactive webinar workshop will cover the following topics:

  • N concerns and Adapt-N results
  • Adapt-N inner workings
  • How to use Adapt-N effectively
  • Complementary technologies (cover crop interseeder, VRT, VERIS, etc)
  • Overview of all-new 2014 interface and model improvements
  • Hands-on training on Adapt-N

3.5 CCA Credits in Nutrient Management will be offered.

For more information, see the Adapt-N website.