The community of the International Maize and Wheat Improvement Center (CIMMYT) joins former colleagues of John A. Mihm, CIMMYT’s maize entomologist during the 1970s-90s, in honoring his memory and valuable work. John passed away on January 25, 2019, at the age of 72.
Special maize populations developed by Mihm and his CIMMYT contemporaries are critical in today’s global quest for new maize varieties to resist the fall armyworm (Spodoptera frugiperda), according to B.M. Prasanna, director of the CIMMYT Global Maize Program and the CGIAR Research Program on Maize.
“The insect-resistant maize germplasm developed by Mihm is proving an invaluable resource in our fight against this pest, underpinning progress in the development of resistant varieties,” said Prasanna.
Crop entomologists were laboriously placing young insect larvae onto plants in greenhouses and in the field until 1976, when Mihm developed the âbazooka.â A plastic tube with a valve that quickly and easily delivered a uniform mixture of corn grits and insect larvae into individual maize plants, the innovation allowed researchers to infest hundreds of plants in a single morning.
Originally from the Americas, fall armyworm has caused major damage to maize crops in Africa since 2016. The pest is now spreading rapidly in Asia, with incidence on maize crops confirmed in India, Bangladesh, Sri Lanka, Myanmar, Thailand, and southern China.
“Without proper controls, fall armyworm could reduce maize grain harvests in Africa alone by an amount worth as much as US$4.6 billion,” Prasanna explained, citing a 2018 report from the Centre for Agriculture and Biosciences International (CABI).
With support from UNDP, Mihm greatly refined CIMMYT practices to rear larvae of maize insect pests and to apply them efficiently so that researchers could identify resistant plants and use them to breed elite, resilient varieties.
After leaving CIMMYT in 1994, Mihm worked for the U.S. company “French Agricultural Research” in studies on sources of resistance in maize to corn rootworm (Diabrotica spp). He eventually retired happily to his farm in Minnesota, according to Florentino Amasende, a former CIMMYT field assistant who was a close friend and colleague of Mihm.
“John was a friend, a mentor and even a father figure for me,” said Amasende, who with support from Mihm for his university studies rose to seed production specialist in leading seed companies. “My family and I are eternally grateful for the opportunities he gave me.”
NAIROBI (Kenya) â As the invasion of the voracious fall armyworm threatens to cause US$3-6 billion in annual damage to maize and other African food staples, 35 organizations announced today the formation of a global coalition of research for development (R4D) partners, focused on developing technical solutions and a shared vision of how farmers should fight against this pest. After causing extensive crop damage in Africa, the presence of the fall armyworm was recently confirmed in India.
The new Fall Armyworm R4D International Consortium will serve to develop and implement a unified plan to fight this plant pest on the ground. Focusing on applied research, the consortium joins other global efforts and coordinates with international bodies working against this pest. The Fall Armyworm R4D International Consortium will be co-led by the International Maize and Wheat Improvement Center (CIMMYT) and the International Institute of Tropical Agriculture (IITA).
âThis pest caught us all by surprise and it continues eating away at maize and other crops that are important for the food security and livelihoods of African farmers. We can no longer afford to work in isolation,â said the Director General of CIMMYT, Martin Kropff. âMany organizations in the public and private sector are working intensively on different approaches,â he added, âbut farmers are not interested in half solutions. They want to have integrated solutions, supported by strong science, which work effectively and sustainably.â
Consortium members will coordinate efforts to pursue a wide range of options for fighting fall armyworm, with a strong emphasis on integrated pest management, which includes host plant resistance, environmentally safer chemical pesticides, biological and cultural control methods, and agronomic management.
The Deputy Director General for Partnerships for Delivery at IITA, Kenton Dashiell, said that efforts are underway to identify and validate biopesticides, or âvery safe products that donât harm the environment or people but kill the pest.â In some areas, Dashiell explained, farmers may need to consider temporarily switching to a food crop that is not susceptible to armyworm.
A fall armyworm on a damaged leaf in Nigeria, 2017. (Photo: G. Goergen/IITA)
The Vice President of Program Development and Innovation at the Alliance for a Green Revolution in Africa (AGRA), Joe DeVries, said his organization is serving as a bridge between scientists and farmers. AGRA is developing a network of âvillage-based advisersâ across 15 countries who will be connected to farmers via a âprivate sector-ledâ extension system to help farmers deal with fall armyworm infestations. AGRA and its partners already have trained more than 1,000 advisers and expect to add several thousand more who can âquickly bring to farmers the latest knowledge about the best methods of control.â
The Chief Scientist at the Bureau of Food Security of the United States Agency for International Development (USAID), Rob Bertram, expressed his excitement about the formation of the consortium, both for its immediate relevance for fighting fall armyworm and as a forerunner of âmore resilientâ agriculture systems in Africa, which is likely to see similar threats in the future. CIMMYT and USAID, together with global experts, developed an integrated pest management guide to fight fall armyworm, available in English, French and Portuguese.
The Director General of Development at the Center for Agriculture and Biosciences (CABI), Dennis Rangi, noted that the ability for people to more rapidly travel around the world is also making it easier for plant pests to hop from continent to continent. âToday we are focusing on the fall armyworm, tomorrow it could be something different,â he said.
The members of the Fall Armyworm R4D International Consortium will hold their first face-to-face meeting on October 29-31, 2018, in Addis Ababa, Ethiopia. This international conference will be organized by CIMMYT, IITA, AGRA, CABI, FAO, icipe, FAO, USAID and the African Union Commission.
The technical coordinators of the consortium are B.M. Prasanna, Director of the CGIAR Research Program MAIZE and Global Maize Program at CIMMYT, and May-Guri Saethre, Deputy Director General of Research for Development at IITA.
PARTNERS OF THE FALL ARMYWORM R4D INTERNATIONAL CONSORTIUM
Leads:
International Maize and Wheat Improvement Center (CIMMYT)
International Institute of Tropical Agriculture (IITA)
Members:
African Agricultural Technology Foundation (AATF)
Agricultural Research Service (ARS) of the United States Department of Agriculture (USDA)
Alliance for a Green Revolution in Africa (AGRA)
Bayer
Bill & Melinda Gates Foundation
Biorisk Management Facility (BIMAF)
Brazilian Agricultural Research Corporation (Embrapa)
Center for Agriculture and Biosciences (CABI)
Corteva
CropLife International
Deutsche Gesellschaft fĂŒr Internationale Zusammenarbeit (GIZ)
Food and Agriculture Organization of the United Nations (FAO)
Forum for Agricultural Research in Africa (FARA)
International Centre of Insect Physiology and Ecology (icipe)
International Crops Research Institute for the Semi-Arid Tropics (ICRISAT)
Lancaster University
Leibniz Institute DSMZ (German Collection of Microorganisms and Cell Cultures)
Michigan State University (MSU)
Mississippi State University (MSU)
North-West University (NWU)
Norwegian Institute of Bioeconomy Research (NIBIO)
Oregon State University (OSU)
Rothamsted Research
Syngenta
UK Department for International Development (DFID)
United States Agency for International Development (USAID)
University of Bonn
University of Florida (UFL)
University of Greenwich
Virginia Polytechnic Institute and State University (Virginia Tech)
Wageningen University and Research (WUR)
West and Central African Council for Agricultural Research (CORAF/WECARD)
World Agroforestry Centre (ICRAF)
MEDIA CONTACTS
For more information, please contact:
GeneviĂšve Renard, Head of Communication, CIMMYT g.renard@cgiar.org, +52 (55) 5804 2004, ext. 2019.
Katherine Lopez, Head of Communication, IITA k.lopez@cgiar.org, +234 0700800, ext. 2770
Nairobi, Kenya (CIMMYT)Â â A new comprehensive integrated pest management (IPM)-based technical guide produced by international experts will help scientists, extension agents and farmers to tackle the fall armyworm (Spodoptera frugiperda), which has rapidly spread across the African continent in the last two years, decimating maize crops in its path.
Native to North America, the fall armyworm has recently emerged as a major threat in Africa, where it has been identified in over 30 countries since it was first confirmed on the continent in January 2016. The pest can potentially feed on 80 different crop species but has a preference for maize, which poses a significant threat to the food security, income and livelihoods of over 300 million African smallholder farm families that consume maize as a staple crop.
âThe potential impact of the fall armyworm as a major food security and economic risk for African nations cannot be overstated,â said Martin Kropff, director general at CIMMYT.
If proper control measures are not implemented, the fall armyworm could cause extensive maize yield losses of up to $6.2 billion per year in just 12 countries in Africa where its presence has been confirmed, according to the Centre for Agriculture and Biosciences International (CABI).
âThe fall armyworm poses an enormous and wide-scale risk to the livelihoods of several million African smallholders, and requires urgent deployment of an IPM strategy and quick response from all stakeholders,â said B.M. Prasanna, director of MAIZE and the Global Maize Program at CIMMYT. âThe Fall Armyworm Integrated Pest Management Guide provides comprehensive details on the best management practices to help smallholder farmers effectively and safely control the pest while simultaneously protecting people, animals and the environment.â
