“Thrips transmitted Iris yellow spot toposvirus epidemics in the US: progress and challenges in unraveling the epidemiological factors behind the continued outbreaks in onion seed and bulb crops”
, 10th Intern. Plant Virus Epidemiology Symp: Controlling Epidemics of Emerging and Established Plant Virus Diseases-The Way Forward
. International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad, India, p. 5, 2007.