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Objectives What's New

Promote the national network of onion and other allium researchers, extension personnel and industry reps in relation to the following objectives:

  •  Screen onion germplasm for improved levels of  tolerance to Iris yellow spot virus and thrips

  •  Develop onion production systems that consider the interaction of multiple pests, plant stresses, and production practices;

  • Identify onion responses to varying levels of thrips and Iris yellow spot virus infection; and identify cultural and biological tactics that can reduce or replace insecticides for thrips and Iris yellow spot management.

  • Biology and epidemiology of Iris yellow spot virus;

  •  Information transfer of progress dealing with IYSV and thrips biology and IPM strategies to the onion industry and other interested parties.

 

First Report of Iris yellow spot virus on Onion (Allium cepa) in Serbia

New Publication by Huchette, O., Bellamy, C., Filomenko, R., Pouleau, B., Seddas, S., and Pappu, H.R. 2008. Iris yellow spot virus on shallot and onion in France. Online. Plant Health Progress doi:10.1094/PHP-2008-0610-01-BR.


New Publication by Pappu, H. R., Rosales, I. M., and Druffel, K. L. 2008. Serological and molecular assays for rapid and sensitive detection of Iris yellow spot virus infection of bulb and seed onion crops. Plant Disease  92:588-594.

IYSV has been confirmed in Germany.

The minutes of the W-1008 Committee Meeting in Denver have been added under Research Annual Meeting.

IYSV Disease Progression Photos and Slide Presentation Added under IYSV Diagnosis.

Photos of Presumptive IYSV Death in Onions caused premature field death of onions and tissue collapse.

W1008 Meeting Pictures Added Under News and Events or Click Here

Onion World (Jan. 2008 Issue) - "IYSV continues its march across the nation's onion production areas and now has been identified in Michigan state."  MSU Plant Pathologist Mary K . Hausbeck reported at the December 2007 Great Lakes Expo Onion Session in Grand Rapids, MI that IYSV was detected in six different Michigan counties during 2007.