maize lethal necrosis disease solutions

•. This is to ensure that we give you the best experience possible. By 2012, symptoms consistent with maize lethal necrosis were observed in a number of districts in the Central, Nyanza, Western and Rift Valley provinces of Kenya. The project on ‘Preventing Seed Transmission of Maize Lethal Necrosis in Africa’ aims to generate a better understanding of these epidemiological issues to allow for more effective control of MCMV transmission through commercial seed, support the development of effective, evidence-based phytosanitary regulations, reduce MLN disease pressure in eastern Africa, and curb the spread to non … Continuing to use www.cabi.org means you agree to our use of cookies. Plant Microbiology - Viral Diseases : FACT SHEET NO. The Maize Lethal Necrosis Disease (MLND) is a result of a combination of two viruses, the Maize Chlorotic Mottle Virus (MCMoV) and any of the cereal viruses in the Potyviridae group, like the Sugarcane Mosaic Virus (SCMV), Wheat Streak Mosaic Virus (WSMV) or Maize Dwarf Mosaic Virus (MDMV). Presentation during IITA R4D week 2015 (23 - 27 Nov. 2015). “There has been a tremendous progress in research of an alternative maize crop disease control since the establishment of MLN screening facility back in September 2011 when we collaborated with KALRO to put up the research facility in Naivasha. Deadly maize lethal necrosis disease under control, says expert. ò MAIZE LETHAL NECROSIS HISTORY In September 2011, a disease outbreak in Kenya was positively identified as Maize Lethal Necrosis Disease (MLND). Maize lethal necrosis disease (MLND) negatively affects maize crops and their seeds and is threatening food and economic security in East and Central Africa. Farmers should remove [email protected]. In addition, four print media articles on the problems and management of the disease were published in national newspapers in Uganda and Kenya, including; ‘Seeds of Gold’ in both countries, ‘Harvest Money’ magazine and ‘New Vision’. The coinfecting viruses act synergistically to result in frequent plant death or severely reduce or negligible yield. Plantwise and partners also recommend rotating with non-cereal crops (e.g. Farmers view maize seedlings under research in Naivasha during inauguration of the Maize lethal necrosis disease screening center in KARI-Naivasha.Photo/George Murage. The disease was first reported in Bomet county in 2011 in Bomet before spreading to other maize-growing regions. The project aimed to ensure MLND was sustainably managed in eastern and central Africa; increasing productivity and efficiency of the maize value chain. Sign up to receive the latest news, information, updates and offers from CABI. Use maize varieties that are resistant to MLN . An intensive multi-disciplinary and multi-institutional strategy is being implemented to curb the spread of MLN in … A plant health inspectorate organization can test for Maize chlorotic mottle virus (MCMV) in all seed coming into the country including the material for breeding. This contributed to increased maize productivity in the region and hence improved food security and income. The maize lethal necrosis (MLN) screening facility at the Kenya Agricultural Research Institute (KARI) Naivasha in Kenya. Case Study 2: Maize Lethal Necrosis Disease (MLND) Possible solutions: A government or agricultural industry task force can help provide surveillance and workshops to educate farmers so they can identify the problem early on. beans, faba bean, chickpea etc.) Maize Lethal Necrosis Disease (MLN Disease, MLND, Corn Lethal Necrosis) is a disease affecting maize (corn) chiefly in East Africa. Avoid visiting your maize ˜eld once in contact with any The major biotic causes of stress in maize include Striga a parasitic weed, insect pest, diseases mainly northern corn leaf blight, maize lethal necrosis (MLN), Maize streak virus (MSV), and common leaf rust, gray leaf spot (GLS), stalk and ear rot. A new challenge for maize scientists in East Africa. Nairobi, Kenya, May 11, 2015 – More than 150 participants will gather in Nairobi for an international conference from May 12 to 14, 2015, to share knowledge on the latest diagnostics and screening methods for the maize lethal necrosis (MLN) disease, and assess ways of curbing its spread … Efforts in managing the maize lethal necrosis disease have contributed to reducing seed production losses, an expert has said. A serious disease outbreak in Kenya, later diagnosed as maize lethal necrosis, was first reported in September 2011 in the Longisa division of the Bomet district. Maize lethal necrosis (MLN) emerged as a serious threat to maize production and livelihoods of smallholders in eastern Africa since 2011. Maize lethal necrosis disease (MLND) negatively affects maize crops and their seeds and is threatening food and economic security in East and Central Africa. However, the observed symptoms were more severe than commonly associated with MCMV, suggesting the presence of maize lethal necrosis (MLN), a disease that results from maize infection with both MCMV and a potyvirus (4). Of 17 symptomatic leaf samples from each Bomet and Naivasha, nine from Bomet and all 17 from Naivasha were positive for MCMV. The double infection of the two viruses gives rise to what When maize lethal necrosis (MLN) was first reported in Bomet County, Kenya, in September 2011 and spread rapidly to several countries in eastern Africa, agricultural experts feared this emerging maize disease would severely impact regional food security. International coalition keeps devastating maize disease at bay, but risks still linger. (Photo: George Mahuku/CIMMYT) This announcement by Dr. L. M. Suresh was originally published on the Maize Lethal Necrosi s Information Portal of the International Maize and Wheat Improvement Center (CIMMYT) . This project researched solutions to minimize or eliminate the risks and effects of the disease in the region. •. In the Biosafety Laboratory at CIMMYT headquarters, El Batán, Monica Mezzalama cuts up some MLN-infected maize leaves and crushes them into a buffer solution. Maize is planted by a large number of farmers so the increased use of pesticides in the production of maize may have a negative impact on the environment. for at least 2-3 years/seasons and removing alternate hosts including, sorghum, grasses, millet, wheat, oats, sudan grass. The maize lethal necrosis (MLN) artificial inoculation screening site in Naivasha, Kenya, will begin its phenotyping (screening/ indexing) cycle of 2019 at the beginning of January 2019 and in other four intervals throughout the year. They also recommend not moving infected maize plants and seeds to disease-free areas. For production and use of clean certified MCMV disease free maize seeds . We trained over 84 extension staff, local administrators and researchers in packaging and disseminating information. Five live radio talk shows, three recorded radio programmes and one recorded TV news item were broadcast in Kenya, Tanzania and Uganda. Home / Projects / Managing Maize lethal necrosis disease in eastern and central Africa. The most commons are the potyvirus Sugarcane Mosaic Virus (SCMV), Maize Dwarf Mosaic Virus () or the tritimovirus Wheat Streak Mosaic Virus (WSMV). A serious new disease of maize appeared in the farmers’ fields in eastern Africa in 2011. Symptoms similar to MLN were reported in Uganda, Tanzania, South Sudan and Ethiopia. It’s caused by infection with two viruses, MCMoV (Maize chlorotic mottle virus) and one from the Potyviridae group, MDMV (Maize dwarf mosaic virus), WSMV (Wheat streak mosaic virus), and SCMV (Sugarcane mosaic virus). We produced a maize lethal necrosis poster in English that targeted farmers and translated it into Kiswahili for Tanzania and Kenyan audiences, Kalenjin for Kenya and seven languages in Uganda. Viruses involved in maize lethal necrosis disease Maize lethal necrosis disease symptoms (Photo la and Photo 1b) is caused by the synergistic co-infection of maize with maize chloro- tic mottle virus symptoms (Photo 2) and any virus from the family Potyviridae, these include wheat streak mosaic virus, maize dwarf Through use of various channels to reach stakeholders along the value chain, CABI disseminated information on the threat of the disease and ways to manage it. We also produced a mini video on the project for use online which covered the annual review and planning meeting. 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. The disease is caused by the combination of Maize chlorotic mottle virus (MCMV) and a virus belonging to the potyviridae family, commonly Sugarcane Mosaic Virus (SCMV). Entebbe, Uganda, Association for Strengthening Agricultural Research in Eastern and Central Africa (ASARECA), National Agricultural Research Institutes from the respective project countries, International Maize and Wheat Improvement Centre (CIMMYT), CABI is a member of:  The Association of International Research and Development Centers for Agriculture. 8:51. Partners of the CABI-led programme, Plantwise recommend where possible using certified, disease-free seed. Knowledge is power! Called maize lethal necrosis (MLN; or corn lethal necrosis, CLN), it can devastate maize crops. The Maize Lethal Necrosis Disease (MLND) is a result of a combination of two viruses, the Maize Chlorotic Mottle Virus (MCMoV) and any of the cereal viruses in the Potyviridae group, like the Sugarcane Mosaic Virus (SCMV), Wheat Streak Mosaic Virus (WSMV) or Maize Dwarf Mosaic Virus (MDMV). Maize Lethal Necrosis Disease. One of the management options for the disease is vector control by the use of insecticides. The double infection of the two viruses gives rise to what is known as MLND, also referred to as Corn … Maize lethal necrosis (MLN) is a disease of maize caused by coinfection of maize with maize chlorotic mottle virus (MCMV) and one of several viruses from the Potyviridae, such as sugarcane mosaic virus, maize dwarf mosaic virus, Johnsongrass mosaic virus or wheat streak mosaic virus. he International Maize and Wheat Improvement Centre. get common solution in consultation with the Ministry of Agriculture. Maize lethal necrosis (MLN) is a disease of maize caused by the combination of Maize chlorotic mottle virus (MCMV) and a virus belonging to the potyviridae family. The viruses are vectored by insects as maize thrips, rootworms and leaf beetles. D I S E A S E F R E E D I S E A S E F R E E CERTIFIED Disease-free certified seed: Use certi˜ed seeds from a reputed seed agency or company. The plants are dusted with a fine grey powder to cause surface damage, allowing the disease-causing viruses to enter when Mezzalama … Maize Lethal Necrosis Disease (MLND) diagnostic solutions. Passing through two further sets of safety doors, she arrives at the greenhouse where several hundred young maize plants await inoculation. Box 295. Prevention. Domestic regulation can be put in place to prevent the movement of maize products from affected areas to disease-free regions. To reduce instances and severity of the disease and its spread the team sought to increase and achieve equitable access and use of technologies, innovations, management practices and knowledge of disease management. Maize Lethal Necrosis disease (MLND) is a key regional and transboundary challenge that continues to bring havoc to farmers’ maize grain harvest and threatens food security in the eastern African region. Highlights Maize lethal necrosis (MLN) emerged as a serious threat to maize production and livelihoods of smallholders in eastern Africa since 2011. By: Lava Kumar et al Control: Immediately remove diseased plants from your fields. Maize Lethal Necrosis Disease in East Africa - Duration: 8:51. Maize lethal necrosis (MLN) is a severe disease affecting corn. We also disseminated MLNDs information through 82 plant health rallies in over 20 districts and provinces throughout Burundi, Kenya, Rwanda, Tanzania and Uganda which reached over 11,635 farmers, traders, community leaders and agro-dealers (5,241 men, 3,921 women and 2,473 youth and children). The team conducted an information needs assessment in Kenya, Tanzania and Uganda that guided the development of a project communication plan. MLN is a new disease … Plant maize at the onset of the main rainy season, rather than during the short rain season; this creates a break between maize crops and interrupts the disease cycle; Weed fields regularly to eliminate alternate hosts for insect vectors. © Copyright 2019 CABI is a registered EU trademark, Managing Maize lethal necrosis disease in eastern and central Africa, Like most websites we use cookies. The disease is difficult to control for two reasons: It is caused by a combination of two viruses that are dif You are here: CIMMYT scientists have discovered several marker trait associations for crop diseases including maize lethal necrosis (MLN), maize streak virus (MSV), corn rust and turcicum leaf blight. – Identify existing  knowledge on MLND and the information needs and opportunities, – Improve dissemination of Maize lethal necrosis information, – Create awareness of Maize lethal necrosis among stakeholders. Crop rotation: Grow non-maize crop like legumes after the maize crop to avoid regular MLN host. The team also used radios and television shows to channel information. The outbreak and rapid spread of Maize lethal necrosis disease has emerged as a great challenge to maize production, threatening food security for the majority of households in the Eastern and Central Africa region. Through use of various channels to reach stakeholders along the value chain, CABI disseminated information on the threat of the disease and … Rotate maize with non-cereal crops such as sweet potato or beans for a period of 2-3 seasons if MLND had attacked your or neighbouring fields; Do not plant maize near fields with infested maize as the disease will spread into your field; Avoid movement of green maize from infected areas to disease-free … NARO Secretariat, 13 Lugard Avenue, P.O. Sally Kosgei eulogises former president Daniel Arap Moi - Duration: 20:39. Scientists, policymakers, seed companies and regulators converge to seek solutions on maize lethal necrosis. This project researched solutions to minimize or eliminate the risks and effects of the disease in the region. Since then the disease has been reported in Rwanda and DR . Maize is an important food crop in majority of households in East and Central Africa, where it accounts for 40-50% of the calories and proteins consumed. These facilities include Maize Lethal Necrosis (MLN) screening facility in Naivasha, Kiboko’s Crops Research Station among others. These are estimated to have reached at least 50,000 listeners. Seed Inspectors can check for Maize lethal necrosis disease (MLND) in seed farms. Environmental Impact. All these trait-associated markers have been validated in biparental populations. Sep 26. If you would like to, you can learn more about the cookies we use, Develop and disseminate Maize lethal necrosis  resistant/ tolerant maize varieties that were adaptable to eastern Africa, Validate and disseminate proven MLND technologies, innovations and management practices in an integrated way to prevent the spread, Enhance the knowledge base on MLND viruses and the epidemiology of the disease in eastern Africa, Facilitate policy and economic analyses and advocacy to guide viable, equitable and gender responsive management interventions, Strengthen regional capacity for innovation to prevent and control Maize lethal necrosis. Top of page. CIMMYT 1,457 views. Enhance communication, information and knowledge on MLND with key CABI activities to. Of insecticides that maize lethal necrosis disease solutions the development of a project communication plan MLN ) emerged a. 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