• MLN Screening facility, Naivasha, Kenya - 2016
  • MLN Screening facility, Naivasha, Kenya -2019
  • IMIC Partners participating in MLN field day - 2019
  • Global Leadership team - Limagrain seeds company visiting MLN screening facility - 2019
  • Dr.BÄNZIGER, Marianne and the team visit to MLN Screening facility, Naivasha, Kenya
  • MLN Diagnostics & Mgt and MLN Epidemiology projects meeting, Nairobi, Kenya -2019
  • EAC-CIMMYT meeting on MLN in Nairobi, Kenya, 2018
  • International Year of Plant Health

Latest Updates

  • Screening cycle for deadly MLN virus set to begin in Kenya during January 2021

    By Dr. Suresh, L.M.: The maize lethal necrosis (MLN) artificial inoculation screening site in Naivasha, Kenya will begin its phenotyping (screening/ indexing) cycle of 2021 at the beginning of January 2021 and in other four intervals, interested organizations from both the private and public sectors are invited to send maize germplasm for screening. In 2013, the International Maize and Wheat Improvement Center (CIMMYT) and the Kenya Agricultural & Livestock Research Organization (KALRO) jointly established the MLN screening facility at the KALRO Naivasha research station in Kenya’s Rift Valley with support from the Bill & Melinda Gates Foundation and the Syngenta Foundation for Sustainable Agriculture. MLN was first discovered in Kenya in 2011 and quickly spread to other parts of eastern Africa; the disease causes premature plant death and unfilled, poorly formed maize cobs, and can lead to up to 100 percent yield loss in farmers’ fields. CIMMYT and partners are dedicated to stopping the spread of this deadly maize disease ...

  • Maize lethal necrosis (MLN): Efforts toward containing the spread and impact of a devastating transboundary disease in sub-Saharan Africa

    Highlights Maize lethal necrosis (MLN) emerged as a serious threat to maize production and livelihoods of smallholders in eastern Africa since 2011.        An intensive multi-disciplinary and multi-institutional strategy is being implemented to curb the spread of MLN in sub-Saharan Africa, and mitigate the impact of the disease. Intensive germplasm screening led to identification of MLN-resistant sources, and fast-tracked development and commercial release of 19 MLN-tolerant/resistant hybrids in eastern Africa. Marker-assisted breeding led to successful conversion of 52 elite but MLN-susceptible inbred lines into MLN-resistant versions. MLN/MCMV diagnostic protocols have been optimized, and personnel from relevant public and private sector institutions trained on MLN diagnostics, monitoring and surveillance.  Abstract Maize lethal necrosis (MLN), a complex viral disease, emerged as a serious threat to maize production and the livelihoods of smallholders in eastern Africa since 2011, primarily due to the introduction of maize chlorotic mottle virus (MCMV). The International Maize and Wheat Improvement Center (CIMMYT), ...

  • 2020 screening cycle for deadly MLN virus in Kenya – November Planting

      International Year of Plant Health 2020 Dr. Suresh, L.M. (CIMMYT) September 25: The maize lethal necrosis (MLN) artificial inoculation screening site in Naivasha, Kenya will begin the fifth interval of its phenotyping (screening/ indexing) cycle of 2020 at the beginning of November 2020. Interested organizations from both the private and public sectors are invited to send maize germplasm for screening. Aerial View of MLN Demo under the artificial inoculated condition in MLN screening facility, Naivasha In 2013, the International Maize and Wheat Improvement Center (CIMMYT) and the Kenya Agricultural & Livestock Research Organization (KALRO) jointly established the MLN screening facility at the KALRO Naivasha research station in Kenya’s Rift Valley with support from the Bill & Melinda Gates Foundation and the Syngenta Foundation for Sustainable Agriculture. MLN was first discovered in Kenya in 2011 and quickly spread to other parts of eastern Africa; the disease causes premature plant death and unfilled, poorly formed maize cobs, and can lead to up to ...

  • 2020 screening cycle for deadly MLN virus in Kenya – April Planting

    International Year of Plant Health 2020 Dr. Suresh, L.M. (CIMMYT) Feb 29: The maize lethal necrosis (MLN) artificial inoculation screening site in Naivasha, Kenya will begin the second interval of its phenotyping (screening/ indexing) cycle of 2020 at the beginning of April 2020. Interested organizations from both the private and public sectors are invited to send maize germplasm for screening. Aerial View of MLN Demo under the artificial inoculated condition in MLN screening facility, Naivasha In 2013, the International Maize and Wheat Improvement Center (CIMMYT) and the Kenya Agricultural & Livestock Research Organization (KALRO) jointly established the MLN screening facility at the KALRO Naivasha research station in Kenya’s Rift Valley with support from the Bill & Melinda Gates Foundation and the Syngenta Foundation for Sustainable Agriculture. MLN was first discovered in Kenya in 2011 and quickly spread to other parts of eastern Africa; the disease causes premature plant death and unfilled, poorly formed maize cobs, and can lead to up to 100 percent yield ...

  • CIMMYT Scientist, Dr. L.M. Suresh presenting progress on Maize Lethal Necrosis (MLN) at 7th International Conference on “Phytopathology in Achieving UN Sustainable Development Goals”. #IYPH2020

    Dr. Suresh,L.M. (CIMMYT) : Indian Phytopathological Society (IPS) organized 7th International Conference on “Phytopathology in Achieving UN Sustainable Development Goals” at ICAR-Indian Agricultural Research Institute (IARI), New Delhi, India, during January 16-20, 2020. The IPS along with 12 most prominent plant protection societies/institutions within and outside the country have come together to celebrate 2020 as the International Year of Plant Health. There were 43 eminent scientists around the world and many research scientists and policy makers from India representing various Institutions, Agricultural universities and international organizations gathered to discourse the issues related to plant pathogens, the disease they cause, the threat they pose to global agriculture and method & strategies to combat them. The inaugural session " 7th International Conference on “Phytopathology in Achieving UN Sustainable Development Goals” The conference covered several key topics mentioned below. TECHNICAL SESSIONS Taxonomy of plant pathogensPlant disease diagnosticsPopulation genetics and pathogen diversityHost pathogen interaction and plant immunityClimate change influencing plant diseasesEpidemiology and forecasting ...

  • How a disease without borders was contained

    Experts reflect on the successful efforts to limit the spread of maize lethal necrosis across eastern and southern Africa. By Joshua Masinde November 25, 2019 It’s been eight years since maize lethal necrosis (MLN) was first reported on the African continent. When it appeared in Kenya’s Bomet County in 2011, a sense of panic swept across the maize sector. Experts quickly realized that all maize varieties on the market were susceptible to this viral disease, which could wipe out entire maize fields. Dr.-Suresh-L-M-helping-NARS-partners-to-undergo-training-on-disease-diagnosis-using-immunostrip-in-Ambo-PC-Yasabu-Simret-CIMMYT Spearheaded by the International Maize and Wheat Improvement Center (CIMMYT), a rapid regional response involving national agriculture research systems (NARS), national plant protection organizations and seed sector partners was set up. The response involved multiple approaches: rigorous surveillance, epidemiology research, disease management across the seed value chain, and screening and fast-tracking of the MLN-tolerant maize breeding program. Now, CIMMYT and its partners are reflecting on the tremendous impact of transboundary ...