Project Contacts


Samuel Angwenyi

Project Coordinator


The United States Agency for International Development (USAID), one of the original funders of AATF, supports the Nitrogen-Use Efficient, Water-Use Efficient, Salt-Tolerant Rice Project; Pod-Borer Resistant Cowpea Project; and the Water Efficient Maize for Africa project. USAID supports the MLN Diagnostics and Management Project through CIMMYT. USAID also supported the Striga Control in Maize project as part of the US government’s Feed the Future initiative.

Vision of Success/Goal

Spread of Maize Chlorotic Mottle Virus (MCMV) controlled especially in MLN-endemic countries of Eastern Africa.

MCMV prevented from entering non-endemic countries especially in Southern Africa


Support the commercial seed sector in MLN-endemic countries in producing MCMV-free commercial seed and Promote the use of clean certified hybrid seed by farmers.

More About the Project

Farmers control loss on harvest through use of clean, certified MLN tolerant maize varieties

Ensure farmers obtain maximum maize productivity by reducing/mitigating MLN disease incidences in their farms

The current 50-100% loss on seed production due to MLN is controlled

Seed businesses obtain expected profits due to availability and use of  MLN tolerant maize seeds


Farmers can access the MLN tolerant maize varieties from seed companies and Agro-dealers.

4800 – Number of Rapid diagnostic kits for MLN detection distributed to seed companies in Kenya, Uganda, Tanzania, Rwanda and Ethiopia

Over 10,000 IEC materials on MLN management reproduced and distributed to maize stakeholders in target countries

From 33% to 16%  – Percentage of decrease in MLN incidences in seed production fields between 2016 and 2019.

Achievements/key numbers

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Level of uptake and use of MLN Management SOPs by seed companies engaged

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Number of seed companies engaged in MLN management and MCMV free seed production activities in eastern…

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Number of maize seed out-growers engaged in MCMV-free seed production trainings

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Number of farmers engaged through field days and trainings on MLN management and awareness


Information and Resources

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

Download Resource file

SOPS – MLN disease portal

Download Resource file

1. Technical Manual on MLN Management: Developed in collaboration with partners; awaiting publishing.

2. Book Chapter on Emerging Crop Diseases in collaboration with the University of Cambridge: Published by the American Phytopathological Society (APS) and has already been copyedited. Currently at the printer.

3. 2 Manuscripts awaiting review and publishing. Data was analysed from ODK platforms, analysed and manuscripts drafted.