Loop-Mediated Isothermal Amplification assays for on-site detection of the main sweetpotato infecting viruses.

"Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper."

"This study was undertaken as a part of the CGIAR Research Program on Roots, Tubers and Bananas (RTB) and was supported by CGIAR Trust Fund contributors and the Bill & Melinda Gates Foundation, Seattle WA [OPP1019987]. The authors specially appreciate the Kenya Plant Health Inspectorate Services–Plant Quarantine and Biosecurity Station (KEPHIS-PQBS) Muguga for Lab and screen house facilities where diagnostic assays were conducted. Assistance provided by Food and Environment Research Agency (FERA) Science Ltd. with primer design is highly appreciated. We express special gratitude to the Director General, Kenya Agricultural and Livestock Research Organisation (KALRO) for granting study leave to the first author. This work is part of a doctoral research study by the first author."