Maize Lethal Necrosis (MLN) disease: A threat to food security in eastern Africa Francis Mwatuni & B.M. Prasanna MLN Diagnostics and Management Project,

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Presentation transcript:

Maize Lethal Necrosis (MLN) disease: A threat to food security in eastern Africa Francis Mwatuni & B.M. Prasanna MLN Diagnostics and Management Project, CIMMYT, Nairobi, Kenya Presentation to The Trade Africa Feed the Future Regional Conference Arusha – April 12 th 2016

MLN in eastern Africa is caused by coinfection of maize plants by MCMV and SCMV

What exactly is causing the spread of MLN? Vectors: Presence of aphids and thrips, other insects Environment: Conditions favoring vectors and disease Susceptible Germplasm (seeds)? Virus: Either individual or compound

Source: Aisja Frenken (FAO REOA) Spread of Maize Lethal Necrosis (MLN) in eastern Africa Kenya Nov 2011 Tanzania Aug 2012 Rwanda Mar 2013 Uganda Oct S. Sudan Jan 2013 Ethiopia June 2014 DRC March 2014

MLN Impact 23% yield loss in Kenya 0.3 million metric tons US $188 million Source: De Groote et al. (2015)

We need to tackle the MLN challenge on diverse fronts

First-generation MLN-tolerant hybrids released and being scaled-up for delivery to farmers in eastern Africa CountryVarietyReleased by Seed company UgandaUH5354NARONASECO UH5358NAROTo be decided by NARO KenyaH12MLKSC H13MLKSC TanzaniaHB607Meru-Agro MLN-tolerant CIMMYT-derived hybrid vs. commercial checks under artificial inoculation in Naivasha

MLN Resistant Hybrids (Naivasha; 2016) 15 second-generation CIMMYT-derived MLN resistant hybrids are presently under NPTs in Kenya, Tanzania and Uganda. Resistant HybridsCommercial Check

Target countries 1.Ethiopia 2.Uganda 3.Kenya 4.Rwanda 5.Tanzania 6.Malawi 7.Zambia 8.Zimbabwe MLN-endemic countries Non-endemic countries Need to control the spread and impact of MLN in sub-Saharan Africa

The purpose of the MLN Phytosanitary CoP: create and ensure a structure that allows the stakeholders to promote the best practices in controlling the spread and impact of MLN in SSA build common capability in MLN-related phytosanitary procedures and practices across the organisations Share knowledge and best practices on MLN diagnostics and management across borders MLN Phytosanitary CoP established in Feb 2016

Thank you for your interest!