Location: Asia

As a fast growing region with increasing challenges for smallholder farmers, Asia is a key target region for CIMMYT. CIMMYT’s work stretches from Central Asia to southern China and incorporates system-wide approaches to improve wheat and maize productivity and deliver quality seed to areas with high rates of child malnutrition. Activities involve national and regional local organizations to facilitate greater adoption of new technologies by farmers and benefit from close partnerships with farmer associations and agricultural extension agents.

Traditional mixed maize farming system in northern Laos. (Photo: H. Weyerhaeuser/CIMMYT)

Fall armyworm survey marks CIMMYT’s first research project in Laos

Written by Matthew O'Leary on May 13, 2020. Posted in Features.

A major farmer survey is gathering data to understand how smallholders in Laos are responding to fall armyworm invasion and develop agroecological management options to control its spread.

The study, led by the International Maize and Wheat Improvement Center (CIMMYT) in partnership with the Lao Farmer Network (LFN) and the National Agriculture and Forestry Research Institute (NAFRI), is CIMMYT’s first official research initiative in the country.

Farmer surveys are being conducted in some of the country’s key maize farming areas, recording attempts to manage the pest and laying the groundwork to raise awareness on sustainable best-bet agroecological strategies that promote a healthy system approach to maize farming, says Horst Weyerhaeuser, a scientific program consultant working with CIMMYT.

“Currently, researchers, policy makers and extension officers possess little information on fall armyworm pest management and control in Laos,” he explains. “The survey is working to build a knowledge-base.”

In June 2019, CIMMYT and national research scientists confirmed that fall armyworm, a global pest that affects the food security of millions of maize farmers, was present in the country.

Working with CIMMYT, LFN trained lead farmers to conduct surveys and collect data from farmers in their local areas. The network has also been distributing a series of infographics and videos in local languages, developed by CIMMYT and translated with major support from HELVETAS Swiss Intercooperation and the Lao Farmer Rural Advisory Project, to describe appropriate pesticide use and sustainable farming practices to limit impact on harvests.

“The survey data explores how farmers respond to the armyworm in their maize fields, so that integrated pest management strategies can be promoted for successful pest control and especially to limit excessive use of harmful pesticides,” says Phoutthasinh Phimmachanh, who leads the LFN secretariat. “The survey also asks about farmers’ plans for the upcoming rainy season and if they experienced a fall armyworm infestation in 2019 will it change their crop selection and planting schemes.”

The initiative is part of a larger strategy to work with government and farmers in southeast Asia to build a knowledge base on sustainable maize farming through the CGIAR program on MAIZE. Due to the impact of COVID-19, researchers are currently exploring options to continue these and additional surveys digitally and via telephone.

As maize farming increases, so does the risk fall armyworm poses to farmer livelihoods

A woman in Oudomxhai, Laos, stands in her maize field damaged by fall armyworm. (Photo: H. Weyerhaeuser/CIMMYT)

Maize is becoming an increasingly important cash crop in southeast Asia as diets change and consumer preferences for white meat and pork drive a transition from subsistence to commercial maize feed production. Farmer focus groups in northern Laos suggest that maize sales deliver more than 60% of smallholders’ annual cash income.

“Maize is the only cash crop for thousands of smallholder farmers in Laos. Fall armyworm poses a credible threat to their livelihoods and could push them to a vicious circle of poverty and damage to the environment,” explains CIMMYT economist Amjath Babu.

“We want to confirm anecdotal accounts suggesting uninformed farmers are buying whatever pesticides they can get their hands on in a bid to control the pest’s impact on harvests. This reaction mimics that of initial farmer responses in sub-Saharan Africa when the pest first broke out there in 2016.” In this sense, he adds, CIMMYT’s partnership with LFN helps to measure the implications of fall armyworm and the potential for this pest to reduce farmers’ profit margins while encouraging unsustainable pesticide use.

Pesticides must be used with extreme caution and only appropriately if they are to be a part of any fall armyworm management regime, warns CIMMYT Senior Scientist Tim Krupnik.

“The pest has particular habits — like living under leaves, hiding in hard to reach places of the plant, and feeding mainly at night,” he explains. “This makes indiscriminate application of insecticides relatively less useful.” It could also inadvertently contribute to the loss of biodiversity and ecosystem services through overuse of pesticides that cause mortality for natural enemies and parasitoids.

Scientists want to explore whether the higher production costs farmers may incur through additional insecticide purchase is encouraging a shift from maize cash crop monocultures to a more diverse production including replacement or rotations with cassava, fodder crops, and rotational grazing, where feasible.

“By building an evidence base we can work with the National Agriculture and Forestry Research Institute,the agricultural department and farmers to build sustainable, resilient maize farming systems that ensure farmers continue to cash in on maize while diversifying production into sensible alternative crops, with emphasis on protecting their health and the environment,” Babu adds.

Fall armyworm survey part of a larger increase in maize research in southeast Asia

The expansion of maize in Laos has been accompanied by a progressive decrease in landscape and agricultural biodiversity, as farmers respond to opportunities to export maize at relatively profitable prices, largely to neighboring Vietnam and China, by resorting to an expansion of slash-and-burn agriculture with shortened fallows. The rapidly growing demand for maize has resulted in unsustainable farming systems intensification, explains Krupnik, with many farmers clearing forests to plant, and using excessive amounts of herbicides to keep weeds at bay.

“Combined with the fall armyworm invasion, potentially dangerous pesticides have been added to this scenario, with quite concerning potential consequences for further biodiversity loss and contamination of mountain streams by agrochemicals,” he says.

“Projects run by Helvetas, which has helped support our research through coordination and convening efforts, have measured dangerous levels of pesticides in the blood of samples taken from farmers and their families and government officials.”

Maize is important for income generation, but more sustainable and diverse cropping systems are needed to reduce the impact on biodiversity, while avoiding the worst pesticides that comprise human health. The data generated from this research will help design strategies to respond to these problems with more appropriate agricultural practices.

The ministry of agriculture has welcomed support from CIMMYT’s maize systems experts to aid in building a base of knowledge to inform the development of agricultural policy, says Chay Bounphanousay, director general of the National Agriculture and Forestry Research Institute. “With the rise of maize farming and the associated challenges and opportunities it brings, an increase in research will inform agricultural policy to improve farmer livelihoods while protecting the environment.”

Cover photo: Traditional mixed maize farming system in northern Laos. (Photo: H. Weyerhaeuser/CIMMYT)

Responding to fall armyworm in Lao PDR

Written by Emma Orchardson on May 13, 2020. Posted in Uncategorized.

Highland maize production systems in Southeast Asia are crucial in that they generate considerable income for otherwise impoverished farmers in remote upland areas. However, they are largely unsustainable, involving destructive slash and burn agriculture, with increasingly short fallow times between crops. Additionally, and in response to historically favorable maize markets, many farmers now plan to expand maize cultivation areas, which is anticipated to have serious consequences for biodiversity loss and ecosystem services.

The arrival of fall armyworm adds additional pressures that could lead to intensification of management practices and over-use of insecticides; a partial transition away from maize as farmers respond to the pest by growing other crops and initiating new land use practices; and increased use of sustainable intensification practices that employ agroecological options for fall armyworm management.

Responding to fall armyworm (Spodoptera frugiperda J.E. Smith) with data, evidence and agroecological management options in Lao PDR is a research project funded through the CGIAR Research Program on Maize (MAIZE). It sees CIMMYT partner with the Laos Farmer Network (LFN) and the National Agriculture and Forestry Research Institute (NAFRI) to understand how smallholders in the country are responding to fall armyworm invasion and develop agroecological management options to control its spread.

Working with CIMMYT, LFN will train lead farmers to conduct surveys and collect data from farmers in their local areas. The network will also distribute a series of infographics and videos in local languages, developed by CIMMYT and translated with major support from HELVETAS Swiss Intercooperation and the Lao Farmer Rural Advisory Project, to outline appropriate pesticide use and sustainable farming practices to limit impact on harvests. An estimated 2,000 farmers will receive information on research results and fall armyworm management advice.

The results will offer evidence-based insights allowing LFN and the Lao Upland Rural Advisory Service (LURAS) project to plan future extension and development activities more effectively, while also identifying crucial additional research needs given these urgent issues and circumstances.

This research will yield actionable lessons and position LFN and the LURAS project to provide farmers with context-specific and agroecological fall armyworm management advice that responds to insights derived from farmer surveys that characterize pest incidence and severity, and relates them to farmers’ management practices, farm- and landscape-biodiversity, and location.

New publications: Gender differentiated small-scale farm mechanization in Nepal hills

Written by Emma Orchardson on April 30, 2020. Posted in Publications.

The use of small-scale mechanization in smallholder farming systems in South Asia has increased significantly in recent years. This development is a positive step towards agricultural transformation in the region. Small-scale mechanization is now seen as a viable option to address labor scarcity and offset the impact of male outmigration in rural areas, as well as other shortages that undermine agricultural productivity.

However, most existing farm mechanization technologies are either gender blind or gender neutral. This is often to the detriment of women farmers, who are increasingly taking on additional agricultural work in the absence of male laborers. Minimizing this gender disparity among smallholders has been a key concern for policymakers, but there is little empirical literature available on gender and farm mechanization.

A new study by researchers at the International Maize and Wheat Improvement Center (CIMMYT) addresses this gap, using data from six districts in the highlands of Nepal to assess the impact of the gender of household heads on the adoption of mini-tillers — small machinery used to prepare and cultivate land before planting.

Their findings reveal that, when it comes to mini-tiller adoption, there is a significant gender gap. Compared to male-headed households, explain the authors, the rate of adoption is significantly lower among female-headed households. Moreover, they add, when male- and female-headed households have similar observed attributes, the mini-tiller adoption rate among the food insecure female-headed households is higher than in the food secure group.

The authors argue that this gender-differentiated mini-tiller adoption rate can be minimized in the first instance by increasing market access. Their findings suggest that farm mechanization policies and programs targeted specifically to female-headed households can also help reduce this adoption gap in Nepal and similar hill production agroecologies in South Asia, which will enhance the farm yield and profitability throughout the region.

Read the full article in Technology in Society:
Gender differentiated small-scale farm mechanization in Nepal hills: An application of exogenous switching treatment regression.

Women farmers test a mini tiller on farmland in Ramghat, Nepal. (Photo: CIMMYT)

See more recent publications from CIMMYT researchers:

Effect of missing values on variance component estimates in multienvironment trials. 2019. Aguate, F.M., Crossa, J., Balzarini, M. In: Crop Science v. 59, no. 2, p. 508-517.
The relative efficiency of two multistage linear phenotypic selection indices to predict the net genetic merit. 2019. Ceron Rojas, J.J., Toledo, F.H., Crossa, J. In: Crop Science v. 59, no. 3, p. 1037-1051.
High-density mapping of triple rust resistance in barley using DArT-Seq markers. 2019. Dracatos, P.M., Haghdoust, R., Singh, R.P., Huerta-Espino, J., Barnes, C.W., Forrest, K.L., Hayden, M., Niks, R.E., Park, R.F., Singh, D. In: Frontiers in Plant Science v. 10, art. 467.
Modernising breeding for orphan crops: tools, methodologies, and beyond. 2019. Ribaut, J.M., Ragot, M. In: Planta v. 250, no. 3, p. 971-977.
An update of recent use of Aegilops species in wheat breeding. 2019. Kishii, M. In: Frontiers in Plant Science v. 1., art. 585.
Genetics of greenbug resistance in synthetic hexaploid wheat derived germplasm. 2019. Crespo-Herrera, L.A., Singh, R.P., Reynolds, M.P., Huerta-Espino, J. In: Frontiers in Plant Science v. 10, art. 782.
Genetics for low correlation between Fusarium head blight disease and deoxynivalenol (DON) content in a bread wheat mapping population. 2019. Xinyao He, Dreisigacker, S., Singh, R.P., Singh, P.K. In: Theoretical and Applied Genetics v. 132, no. 8, 2401-2411.
Studying selection criteria and genetic variability for improvement of indigenous maize in Pakistan. 2019. Maqbool, M.A., Aslam, M., Issa, A.B., Khan, M. S., Saeed, M.T. In: Pakistan Journal of Agricultural Sciences v. 56, no. 4. 819-827.
Genome wide association study of karnal bunt resistance in a wheat germplasm collection from Afghanistan. 2019. Gupta, V., Xinyao He, Kumar, N., Fuentes Dávila, G., Sharma, R.K., Dreisigacker, S., Juliana, P., Ataei, N., Singh, P.K. In: International Journal of Molecular Sciences v. 20, no. 13, art. 3124.
Does caste determine farmer access to quality information? 2019. Krishna, V.V., Aravalath, L., Vikraman, S. In: PLoS One v. 14, no. 1, art. e0210721.
Estimation of physiological genomic estimated breeding values (PGEBV) combining full hyperspectral and marker data across environments for grain yield under combined heat and drought stress in tropical maize (Zea mays L.). 2019. Trachsel, S., Dhliwayo, T., Gonzalez-Perez, L., Mendoza Lugo, J.A., Trachsel, M. In: PLoS One v. 14, no. 3, art. e0212200.
Genetic diversity and linkage disequilibrium using SNP (KASP) and AFLP markers in a worldwide durum wheat (Triticum turgidum L. var durum) collection. 2019. Roncallo, P.F., Beaufort, V., Larsen, A.O., Dreisigacker, S., Echenique, V. In: PLoS One v. 14, no. 6, art. e0218562.
The abandonment of maize landraces over the last 50 years in Morelos, Mexico: a tracing study using a multi-level perspective. 2019. McLean R., F.D., Camacho Villa, T.C., Almekinders, C., Pè, M.E., Dell’Acqua, M., Costich, D.E. In: Agriculture and Human Values v. 36, no. 4, 651-668.
Molecular screening of Zymoseptoria tritici resistance genes in wheat (Triticum aestivum L.) using tightly linked simple sequence repeat markers. 2019. Mekonnen, T., Haileselassie, T., Kaul, T., Sharma, M., Abeyo Bekele Geleta, Kassahun, T. In: European Journal of Plant Pathology v. 155, no. 2, p. 593-614.
Bacterial diversity based on a 16S rRNA gene amplicon data set from a high-altitude crater lake and glacial samples of the Iztaccihuatl volcanic complex (Mexico). 2019. Calvillo-Medina, R.P., Reyes‐Grajeda, J.P., Moreno-Andrade, V.D., Barba‐Escoto, L., Bautista‐de Lucio, V.M., Jones, G.H., Campos‐Guillen, J. In: Microbiology Resource Announcements v. 8, no. 12, art. e01636-18art. e01636-18art. e01636-18art. e01636-18art. e01636-18art. e01636-18.
Mitigating the twin problems of malnutrition and wheat blast by one wheat variety, ‘BARI Gom 33’, in Bangladesh. 2019. Hossain, A., Mottaleb, K.A., Farhad, M., Barma, N.C.D. In: Acta Agrobotanica v. 72, no. 2, art. 1775.
Sun-induced chlorophyll fluorescence III: benchmarking retrieval methods and sensor characteristics for proximal sensing. 2019. Cendrero-Mateo, M.P., Wieneke, S., Damm, A., Alonso, L., Pinto Espinosa, F., Moreno, J., Guanter, L., Celesti, M., Rossini, M., Sabater, N., Cogliati, S., Julitta, T., Rascher, U., Goulas, Y., Aasen, H., Pacheco-Labrador, J., Mac Arthur, A. In: Remote Sensing v. 11, no. 8, art. 962.
Yield gains and associated changes in an early yellow bi-parental maize population following genomic selection for Striga resistance and drought tolerance. 2019. Badu-Apraku, B., Talabi, O., Fakorede, M. A. B., Fasanmade, Y., Gedil, M., Magorokosho, C., Asiedu, R. In: BMC Plant Biology v. 9, art. 129.
Understanding factors associated with agricultural mechanization: a Bangladesh case. 2019. Aryal, J.P., Rahut, D.B., Maharjan, S., Erenstein, O. In: World Development Perspectives v. 13, p. 1-9.
Wealth, education and cooking-fuel choices among rural households in Pakistan. 2019. Rahut, D.B., Ali, A., Mottaleb, K.A., Aryal, J.P. In: Energy Strategy Reviews v. 24, p. 236-243.
Genome-wide association study and genomic prediction analyses of drought stress tolerance in China in a collection of off-PVP maize inbred lines. 2019. Nan Wang, Bojuan Liu, Xiaoling Liang, Yueheng Zhou, Song, J., Jie Yang, Hongjun Yong, Jianfeng Weng, Degui Zhang, Mingshun Li, Nair, S.K., San Vicente, F.M., Zhuanfang Hao, Zhang, X, Xinhai Li. In: Molecular Breeding v. 39, no. 8, art. 113.
Wildlife trade and consumer preference for species rarity: an examination of caged-bird markets in Sumatra. 2019. Krishna, V.V., Darras, K., Grass, I., Mulyani, Y.A., Prawiradilaga, D.M., Tscharntke, T., Qaim, M. In: Environment and Development Economics v. 24, no. 4, p. 339-360.
Correction to: high-throughput method for ear phenotyping and kernel weight estimation in maize using ear digital imaging. 2019. Makanza, R., Zaman-Allah, M., Cairns, J.E., Eyre, J., Burgueño, J., Pacheco Gil, R. A., Diepenbrock, C., Magorokosho, C., Amsal Tesfaye Tarekegne, Olsen, M., Prasanna, B.M. In: Plant methods v. 15, art. 52.
Tradeoffs between groundwater conservation and air pollution from agricultural fires in northwest India. 2019. Singh, B., McDonald, A., Srivastava, A., Gerard, B. In: Nature Sustainability v. 2 no. 7, p. 580-583.

Asia Regional Resilience to a Changing Climate (ARRCC)

Written by Emma Orchardson on April 30, 2020. Posted in Uncategorized.

The Asia Regional Resilience to a Changing Climate (ARRCC) program is managed by the UK Met Office, supported by the World Bank and the UK’s Department for International Development (DFID). The four-year program, which started in 2018, aims to strengthen weather forecasting systems across Asia. The program will deliver new technologies and innovative approaches to help vulnerable communities use weather warnings and forecasts to better prepare for climate-related shocks.

Since 2019, as part of ARRCC, CIMMYT has been working with the Met Office and Cambridge University to pilot an early warning system to deliver wheat rust and blast disease predictions directly to farmers’ phones in Bangladesh and Nepal.

The system was first developed in Ethiopia. It uses weather information from the Met Office, the UK’s national meteorological service, along with field and mobile phone surveillance data and disease spread modeling from the University of Cambridge, to construct and deploy a near real-time early warning system.

Phase I: 12-Month Pilot Phase

Around 50,000 smallholder farmers are expected to receive improved disease warnings and appropriate management advisories in the first 12 months as part of a proof-of-concept modeling and pilot advisory extension phase focused on three critical diseases:

Wheat stripe rust in Nepal: extend and test the modelling framework developed in Ethiopia to smallholder farmers in Nepal as proof-of concept;
Wheat stem rust in Bangladesh and Nepal: while stem rust is currently not widely established in South Asia, models indicate that devastating incursion from neighboring regions is likely. This work will prepare for potential incursions of new rust strains in both countries;
Wheat blast in Bangladesh: this disease is now established in Bangladesh. This work will establish the feasibility of adapting the dispersal modelling framework to improve wheat blast predictability and deploy timely preventative management advisories to farmers.

Phase II: Scaling-out wheat rust early warning advisories, introducing wheat blast forecasting and refinement model refinement

Subject to funding approval the second year of the project will lead to validation of the wheat rust early warnings, in which researchers compare predictions with on-the-ground survey results, increasingly supplemented with farmer response on the usefulness of the warnings facilitated by national research and extension partners. Researchers shall continue to introduce and scale-out improved early warning systems for wheat blast. Concomitantly, increasing the reach of the advice to progressively larger numbers of farmers while refining the models in the light of results. We anticipate that with sufficient funding, Phase II activities could reach up to 300,000 more farmers in Nepal and Bangladesh.

Phase III: Demonstrating that climate services can increase farmers’ resilience to crop diseases

As experience is gained and more data is accumulated from validation and scaling-out, researchers will refine and improve the precision of model predictions. They will also place emphasis on efforts to train partners and operationalize efficient communication and advisory dissemination channels using information communication technologies (ICTs) for extension agents and smallholders. Experience from Ethiopia indicates that these activities are essential in achieving ongoing sustainability of early warning systems at scale. Where sufficient investment can be garnered to support the third phase of activities, it is expected that an additional 350,000 farmers will receive disease management warnings and advisories in Nepal and Bangladesh, totaling 1 million farmers over a three-year period.

Objectives

Review the feasibility of building resilience to wheat rust through meteorologically informed early warning systems.
Adapt and implement epidemiological forecasting protocols for wheat blast in South Asia.
Implement processes to institutionalize disease early warning systems in Nepal and Bangladesh.

A wheat field in Pakistan, ready for harvest. (Photo: Kashif Syed/CIMMYT)

CIMMYT and Pakistan: 60 years of collaboration

Written by Mike Listman on April 24, 2020. Posted in Publications. 1 Comment on CIMMYT and Pakistan: 60 years of collaboration

A new fact sheet captures the impact of CIMMYT after six decades of maize and wheat research in Pakistan.

Dating back to the 1960s, the research partnership between Pakistan and CIMMYT has played a vital role in improving food security for Pakistanis and for the global spread of improved crop varieties and farming practices.

Norman Borlaug, Nobel Peace Prize laureate and first director of CIMMYT wheat research, kept a close relationship with the nation’s researchers and policymakers. CIMMYT’s first training course participant from Pakistan, Manzoor A. Bajwa, introduced the high-yielding wheat variety “Mexi-Pak” from CIMMYT to help address the national food security crisis. Pakistan imported 50 tons of Mexi-Pak seed in 1966, the largest seed purchase of its time, and two years later became the first Asian country to achieve self-sufficiency in wheat, with a national production of 6.7 million tons.

CIMMYT researchers in Pakistan examine maize cobs. (Photo: CIMMYT)

In 2019 Pakistan harvested 26 million tons of wheat, which roughly matches its annual consumption of the crop.

In line with Pakistan’s National Food Security Policy and with national partners, CIMMYT contributes to Pakistan’s efforts to intensify maize- and wheat-based cropping in ways that improve food security, raise farmers’ income, and reduce environmental impacts. This has helped Pakistani farmers to figure among South Asia’s leaders in adopting improved maize and wheat varieties, zero tillage for sowing wheat, precision land leveling, and other innovations.

With funding from USAID, since 2013 CIMMYT has coordinated the work of a broad network of partners, both public and private, to boost the productivity and climate resilience of agri-food systems for wheat, maize, and rice, as well as livestock, vegetable, and fruit production.

Download the fact sheet:
CIMMYT and Pakistan: 60 years of collaboration

Cover photo: A wheat field in Pakistan, ready for harvest. (Photo: Kashif Syed/CIMMYT)

IFPRI, IRRI, CIMMYT, WorldFish make joint call for measures to avert risk to food system

Written by Mary Donovan on April 22, 2020. Posted in In the media.

World’s leading food security think-tank and research centres have recommended Bangladesh to ensure transportation of food from rural to urban areas and the flow of crucial inputs to farmers through market systems so that risk to food system during Covid-19 pandemic can be averted.

Training, surveillance, and monitoring to mitigate the threat of wheat blast disease in Bangladesh and beyond

Written by Emma Orchardson on April 21, 2020. Posted in Uncategorized.

Wheat blast (Magnaporthe oryzae pathotype Triticum, or MoT) was first discovered in Brazil in 1985. Since then, it has spread across central and southern Brazil, parts of Bolivia, Paraguay, and Argentina. Grain sterility caused by the disease can significantly reduce wheat yield, with reductions as high as 32% in some parts of Brazil, even with up to two fungicide applications.

The disease appeared in Bangladesh unexpectedly in 2016 and re-emerged in 2017. Wheat area consequently dropped from 62,763 hectares in 2016 to just 14,238 hectares a year later. Suitable climatic conditions in South Asia warn that wheat blast will be a long-term problem.

Some 300 million people in South Asia consume over 100 million tons of wheat annually. Wheat blast therefore presents a significant threat to food security. Compounding these problems, climate change and the evolution of wheat blast – increasing virulence, fungicide resistance and sexual recombination – present further threats.

This project responds to these problems by working to mitigate the effect of wheat blast in South Asia and South America and limit the risk of further spread of this threat, with an emphasis on training, surveillance and monitoring to mitigate the threat of wheat blast disease in Bangladesh and beyond.

Objectives

Improve upon a preliminary modeling framework to manage data requirements for automated time- and spatially-explicit wheat blast outbreak early warning systems (EWS)
Improve flowering predictability to more accurately gauge disease risk
Demonstrate the performance of wheat blast resistant and zinc biofortified variety BARI Gom 33 in farmers’ fields.

Big data analytics for climate-smart agricultural practices in South Asia (Big Data2 CSA)

Written by Emma Orchardson on April 21, 2020. Posted in Uncategorized.

Heterogeneity in soils, hydrology, climate, and rapid changes in rural economies including fluctuating prices, aging and declining labor forces, agricultural feminization, and uneven market access are among the many factors that constrain climate-smart agriculture (CSA) in South Asia’s cereal-based farming systems.

Most previous research on CSA has employed manipulative experiments analyzing agronomic variables, or survey data from project-driven initiatives. However, this can obscure the identification of relevant factors limiting CSA, leading to inappropriate extension, policy, and inadequate institutional alignments to address and overcome limitations. Alternative big data approaches utilizing heterogeneous datasets remain insufficiently explored, though they can represent a powerful alternative source of technology and management practice performance information.

In partnership with national research systems and the private sector in Bangladesh, India and Nepal, Big data analytics for climate-smart agricultural practices in South Asia (Big Data²CSA) is developing digital data collection systems to crowdsource, data-mine and interpret a wide variety of primary agronomic management and socioeconomic data from tens of thousands of smallholder rice and wheat farmers.

The project team analyzes these data by stacking them with spatially-explicit secondary environmental, climatic and remotely sensed data products, after which data mining and machine learning techniques are used to identify key factors contributing to patterns in yield, profitability, greenhouse gas emissions intensity and resilience.

These approaches however must be practical in order for them to be useful in agricultural development and policy. As such, the project’s analytical results will be represented through interactive web-based dashboards, with gender-appropriate crop management advisories deployed through interactive voice recognition technologies to farmers in Bangladesh, India and Nepal at a large-scale. Big Data² CSA is supported by the CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS) Flagship 2 on Climate-Smart Technologies and Practices.

Objectives

Develop ICT tools enabling digital collection of crop management data and a cloud-based database that can be managed by next-users
Support advanced degree-level students to engage in field and data science research
Create a digital data collection platform enabling crowd sourcing of crop management information to evaluate contributions to CSA
Create interactive and customizable web-based dashboards presenting post-season research results and providing CSA management recommendations
Organize CSA and big data policy briefings on mainstreaming processes and policy workshops

Fighting back against fall armyworm in Bangladesh

Written by Emma Orchardson on April 21, 2020. Posted in Uncategorized.

Fall armyworm is an invasive Lepidopteran pest that favors maize and is native to the Americas. It was identified in Bangladesh for the first time in late 2018 following migration from Africa and southern India.

Supported by the University of Michigan and USAID, this project cooperates with national research and extension partners, CABI and the FAO to strengthen efforts to mitigate impact of the pest on farmers’ income, food security and health.

Objectives

Develop educational materials to help reach audiences with information to improve understanding and management of fall armyworm
Assist the Department of Agricultural Extension (DAE) in deploying awareness raising and training campaigns
Institutional change to improve crop protection and integrated pest management
Prepare the private sector for appropriate fall armyworm response
Support the standing multi-threat pest emergency taskforce
Generate data and evidence to guide integrated fall armyworm management

Climate- and market-smart mung bean advisories (CAMASMA)

Written by Emma Orchardson on April 21, 2020. Posted in Uncategorized.

Focusing on highly profitable but weather-risk prone mung bean production in coastal Bangladesh, the Climate and market-smart mung bean advisories (CAMASMA) project develops farmer friendly and demand-driven climate- and market-smart mung bean advisory dissemination systems.

Heavy rainfall events can cause significant damage to mung bean production, causing large yield and income losses for farmers in coastal Bangladesh. By integrating and disseminating weather-forecast information, climate-smart advisories for when and how to harvest mung bean help farmers to mitigate some of the climate risks associated with crop production.

Both mung bean farmers and traders can also benefit from real-time market price data. In addition to market intelligence on where large blocks of farmers have quality mung bean for sale, CAMASMA improves information flow to lower trading firms’ transactions costs while speeding farm-gate purchase and income generation from farmers.

CAMASMA is a pilot project that demonstrates the power of climate services, agricultural advisories, and use of social network analysis and ICTs to speed information delivery and increase farmers’ resilience to extreme climatic events.

Objectives

Customize heavy and extreme rainfall event forecasts for coastal Bangladesh
Analyze social networks to assist extension agents in rapid deployment of crop management advice in remote and hard to reach areas
Set up interpretive algorithms and interactive voice response (IVR) mobile call systems for weather, mung bean management and market advisories appropriate to men and women smallholder farmers
Release and promote a smartphone app providing customized weather forecasts, mung bean agronomic advice, early warnings for potential crop damaging extreme weather events, and market information
Establish business models and strategies for sustaining the use of IVR and smartphone apps after project closure

Blast and rust forecast

Written by Matthew O'Leary on April 20, 2020. Posted in Features. 1 Comment on Blast and rust forecast

An early warning system set to deliver wheat disease predictions directly to farmers’ phones is being piloted in Bangladesh and Nepal by interdisciplinary researchers.

Experts in crop disease, meteorology and computer science are crunching data from multiple countries to formulate models that anticipate the spread of the wheat rust and blast diseases in order to warn farmers of likely outbreaks, providing time for pre-emptive measures, said Dave Hodson, a principal scientist with the International Maize and Wheat Improvement Center (CIMMYT) coordinating the pilot project.

Around 50,000 smallholder farmers are expected to receive improved disease warnings and appropriate management advisories through the one-year proof-of-concept project, as part of the UK Aid-funded Asia Regional Resilience to a Changing Climate (ARRCC) program.

Early action is critical to prevent crop diseases becoming endemic. The speed at which wind-dispersed fungal wheat diseases are spreading through Asia poses a constant threat to sustainable wheat production of the 130 million tons produced in the region each year.

“Wheat rust and blast are caused by fungal pathogens, and like many fungi, they spread from plant to plant — and field to field — in tiny particles called spores,” said Hodson. “Disease strain mutations can overcome resistant varieties, leaving farmers few choices but to rely on expensive and environmentally-damaging fungicides to prevent crop loss.”

“The early warning system combines climate data and epidemiology models to predict how spores will spread through the air and identifies environmental conditions where healthy crops are at risk of infection. This allows for more targeted and optimal use of fungicides.”

CIMMYT consultant Madan Bhatta conducts field surveys using Open Data Kit (ODK) in the mid-hills of Nepal. (Photo: D. Hodson/CIMMYT)

Initial efforts focused on adapting the wheat stripe and stem rust model from Ethiopia to Bangladesh and Nepal have been successful, with field surveillance data appearing to align with the weather-driven disease early warnings, but further analysis is ongoing, said Hodson.

“In the current wheat season we are in the process of comparing our disease forecasting models with on-the-ground survey results in both countries,” the wheat expert said.

“Next season, after getting validation from national partners, we will pilot getting our predictions to farmers through text-based messaging systems.”

CIMMYT’s strong partnerships with governmental extension systems and farmer associations across South Asia are being utilized to develop efficient pathways to get disease predictions to farmers, said Tim Krupnik, a CIMMYT Senior Scientist based in Bangladesh.

“Partnerships are essential. Working with our colleagues, we can validate and test the deployment of model-derived advisories in real-world extension settings,” Krupnik said. “The forecasting and early warning systems are designed to reduce unnecessary fungicide use, advising it only in the case where outbreaks are expected.”

Local partners are also key for data collection to support and develop future epidemiological modelling, the development of advisory graphics and the dissemination of information, he explained.

The second stage of the project concerns the adaptation of the framework and protocols for wheat blast disease to improve existing wheat blast early warning systems already pioneered in Bangladesh.

Example of weekly stripe rust spore deposition forecast in Nepal. Darker colors represent higher predicted number of spores deposited. The early warning system combines weather information from the Met Office with field and mobile phone surveillance data and disease spread modeling from the University of Cambridge. (Graphic: University of Cambridge and Met Office)

Strong scientific partnership champions diversity to achieve common goals

The meteorological-driven wheat disease warning system is an example of effective international scientific partnership contributing to the UN Sustainable Development Goals, said Sarah Millington, a scientific manager at Atmospheric Dispersion and Air Quality Group with the Met Office.

“Diverse expertise from the Met Office, the University of Cambridge and CIMMYT shows how combined fundamental research in epidemiology and meteorology modelling with field-based disease observation can produce a system that boosts smallholder farmers’ resilience to major agricultural challenges,” she said.

The atmospheric dispersion modeling was originally developed in response to the Chernobyl disaster and since then has evolved to be able to model the dispersion and deposition of a range of particles and gases, including biological particles such as wheat rust spores.

“The framework together with the underpinning technologies are transferable to forecast fungal disease in other regions and can be readily adapted for other wind-dispersed pests and disease of major agricultural crops,” said Christopher Gilligan, head of the Epidemiology and Modelling Group at the University of Cambridge.

Fungal wheat diseases are an increasing threat to farmer livelihoods in Asia

Wheat leaf rust can be spotted on a wheat plant of a highly susceptible variety in Nepal. The symptoms of wheat rust are dusty, reddish-orange to reddish-brown fruiting bodies that appear on the leaf surface. These lesions produce numerous spores, which are spread by wind and splashing water. (Photo: D Hodson/CIMMYT)

While there has been a history of wheat rust disease epidemics in South Asia, new emerging strains and changes to climate pose an increased threat to farmers’ livelihoods. The pathogens that cause rust diseases are continually evolving and changing over time, making them difficult to control.

Stripe rust threatens farmers in Afghanistan, India, Nepal and Pakistan, typically in two out of five seasons, with an estimated 43 million hectares of wheat vulnerable. When weather conditions are conducive and susceptible cultivars are grown, farmers can experience losses exceeding 70%.

Populations of stem rust are building at alarming rates and previously unseen scales in neighboring regions. Stem rust spores can spread across regions on the wind; this also amplifies the threat of incursion into South Asia and the ARRCC program’s target countries, underscoring the very real risk that the disease could reemerge within the subcontinent.

The devastating wheat blast disease, originating in the Americas, suddenly appeared in Bangladesh in 2016, causing wheat crop losses as high as 30% on a large area, and continues to threaten South Asia’s vast wheat lands.

In both cases, quick international responses through CIMMYT, the CGIAR research program on Wheat (WHEAT) and the Borlaug Global Rust Initiative have been able to monitor and characterize the diseases and, especially, to develop and deploy resistant wheat varieties.

The UK aid-funded ARRCC program is led by the Met Office and the World Bank and aims to strengthen weather forecasting systems across Asia. The program is delivering new technologies and innovative approaches to help vulnerable communities use weather warnings and forecasts to better prepare for climate-related shocks.

The early warning system uses data gathered from the online Rust Tracker tool, with additional fieldwork support from the Cereal Systems Initiative for South Asia (CSISA), funded by USAID and the Bill & Melinda Gates Foundation, both coordinated by CIMMYT.

Fall Armyworm R4D and Management

Written by Emma Orchardson on April 17, 2020. Posted in Uncategorized.

The fall armyworm (Spodoptera frugiperda; FAW), an insect-pest native to the Americas, has been a persistent and serious pest of maize for over a century. Public and private sector scientists in the Americas – particularly in Brazil and the United States – have developed and deployed effective strategies to control the pest.

Incidence of fall armyworm was first reported in Nigeria in January 2016, and subsequently in over 40 countries across Africa. In Asia, the pest was first reported in India in mid-2018, and has since emerged in several countries in the Asia-Pacific. Strategies for fall armyworm management in both Africa and the Asia-Pacific can benefit immensely from those already fine-tuned in the Americas, with necessary customization to fit local agroecologies and farming systems. There is also a need to intensively work on various aspects of integrated pest management (IPM) for effective and sustainable fall armyworm management. This includes Research-for-Development (R4D) for discovering, validating and piloting best-bet technological interventions or management practices.

This project brings together the expertise of key institutions with long-standing experience in effectively dealing with transboundary insect-pests to strengthen the capacities of Africa- and Asia-based institutions in fall armyworm management. The goal is to develop and disseminate comprehensive, expert approved, IPM-based fall armyworm pest management practices that will enable various stakeholders – especially farmers, extension agents, and pest control advisors – to effectively scout, determine the need for, and appropriately apply specific interventions to control the fall armyworm in maize and other crops in Africa and Asia.

Objectives

Develop, publish and disseminate comprehensive, expert-approved, IPM-based information resources for various stakeholder groups
Integrate traits for fall armyworm resistance into the CIMMYT breeding pipeline
Establish a fall armyworm Research-for-Development (R4D) Consortium

Conservation agriculture key to better income, environment protection: Study

Written by Mary Donovan on April 17, 2020. Posted in In the media.

Resorting to conservation agriculture would not only increase crop yield, income and reduce the use of natural resources, but would also confer climate change benefits, according to a study by Indian agricultural scientists and others published in an international journal on Thursday.

The study, published in the journal Nature Sustainability, also showed that conservation agriculture was key to meeting many of the UN’s Sustainable Development Goals (SDGs) such as no poverty, zero hunger, good health and well-being, climate action and clean water. Conservation agriculture can offer positive contributions to several SDGs, said M. L. Jat, a Principal Scientist at the International Maize and Wheat Improvement Center (CIMMYT) and first author of the study.

During a conservation agriculture course, a young trainee operates a Happy Seeder mounted on a two-wheel tractor, for direct seeding of wheat in smallholder systems. (Photo: CIMMYT)

Conservation agriculture key in meeting UN Sustainable Development Goals

Written by Alison Doody on April 16, 2020. Posted in Press releases. 2 Comments on Conservation agriculture key in meeting UN Sustainable Development Goals

An international team of scientists has provided a sweeping new analysis of the benefits of conservation agriculture for crop performance, water use efficiency, farmers’ incomes and climate action across a variety of cropping systems and environments in South Asia.

The analysis, published today in Nature Sustainability, is the first of its kind to synthesize existing studies on conservation agriculture in South Asia and allows policy makers to prioritize where and which cropping systems to deploy conservation agriculture techniques. The study uses data from over 9,500 site-year comparisons across South Asia.

According to M.L. Jat, a principal scientist at the International Maize and Wheat Improvement Center (CIMMYT) and first author of the study, conservation agriculture also offers positive contributions to the Sustainable Development Goals of no poverty, zero hunger, good health and wellbeing, climate action and clean water.

“Conservation agriculture is going to be key to meet the United Nations Sustainable Development Goals,” echoed JK Ladha, adjunct professor at the University of California, Davis, and co-author of the study.

Scientists from CIMMYT, the Indian Council of Agricultural Research (ICAR), the University of California, Davis, the International Rice Research Institute (IRRI) and Cornell University looked at a variety of agricultural, economic and environmental performance indicators — including crop yields, water use efficiency, economic return, greenhouse gas emissions and global warming potential — and compared how they correlated with conservation agriculture conditions in smallholder farms and field stations across South Asia.

A combine harvester equipped with the Super SMS (left) harvests rice while a tractor equipped with the Happy Seeder is used for direct seeding of wheat. (Photo: Sonalika Tractors)

Results and impact on policy

Researchers found that many conservation agriculture practices had significant benefits for agricultural, economic and environmental performance indicators, whether implemented separately or together. Zero tillage with residue retention, for example, had a mean yield advantage of around 6%, provided farmers almost 25% more income, and increased water use efficiency by about 13% compared to conventional agricultural practices. This combination of practices also was shown to cut global warming potential by up to 33%.

This comes as good news for national governments in South Asia, which have been actively promoting conservation agriculture to increase crop productivity while conserving natural resources. South Asian agriculture is known as a global “hotspot” for climate vulnerability.

“Smallholder farmers in South Asia will be impacted most by climate change and natural resource degradation,” said Trilochan Mohapatra, Director General of ICAR and Secretary of India’s Department of Agricultural Research and Education (DARE). “Protecting our natural resources for future generations while producing enough quality food to feed everyone is our top priority.”

“ICAR, in collaboration with CIMMYT and other stakeholders, has been working intensively over the past decades to develop and deploy conservation agriculture in India. The country has been very successful in addressing residue burning and air pollution issues using conservation agriculture principles,” he added.

With the region’s population expected to rise to 2.4 billion, demand for cereals is expected to grow by about 43% between 2010 and 2050. This presents a major challenge for food producers who need to produce more while minimizing greenhouse gas emissions and damage to the environment and other natural resources.

“The collaborative effort behind this study epitomizes how researchers, policy-makers, and development practitioners can and should work together to find solutions to the many challenges facing agricultural development, not only in South Asia but worldwide,” said Jon Hellin, leader of the Sustainable Impact Platform at IRRI.

Related publications:

Conservation agriculture for sustainable intensification in South Asia.

Interview opportunities:

M.L. Jat, Principal Scientist and Cropping Systems Agronomist, International Maize and Wheat Improvement Center (CIMMYT)

For more information, or to arrange interviews, contact:

Rodrigo Ordóñez, Communications Manager, CIMMYT. r.ordonez@cgiar.org

Acknowledgements:

Funders of this work include the Indian Council of Agricultural Research (ICAR), the Government of India and the CGIAR Research Programs on Wheat Agri-Food Systems (CRP WHEAT) and Climate Change, Agriculture and Food Security (CCAFS).

About CIMMYT:

The International Maize and Wheat Improvement Center (CIMMYT) is the global leader in publicly-funded maize and wheat research and related farming systems. Headquartered near Mexico City, CIMMYT works with hundreds of partners throughout the developing world to sustainably increase the productivity of maize and wheat cropping systems, thus improving global food security and reducing poverty. CIMMYT is a member of the CGIAR System and leads the CGIAR Research Programs on Maize and Wheat and the Excellence in Breeding Platform. The Center receives support from national governments, foundations, development banks and other public and private agencies. For more information, visit staging.cimmyt.org.

Participants in one of the trainings learn how to scout and collect data on fall armyworm in a maize field. (Photo: Bandana Pradhan/CIMMYT)

Collective efforts to fight fall armyworm in Nepal

Written by Rodrigo Ordóñez on April 7, 2020. Posted in Features.

Three years ago, farmers in the country were combatting the threats of a destructive tomato pest, Tuta Absoluta, and are now battling their way to manage the attack of fall armyworm on maize fields across the country. Since the government’s Plant Quarantine and Pest Management Centre (PQPMC) declared the arrival of fall armyworm on August 2019, this pest is reported to have infested almost half the districts of Nepal and continues to spread further.

“I wasn’t able to gather even half the yields I used to get from my maize field following the fall armyworm outbreak last year,” said Pavitra, a farmer from Sindhupalchowk district, Nepal.

The level of incidence and damage varies from place to place, but farmers have reported up to 80% crop loss in extreme cases. In Nepal, the fall armyworm has the potential to cause maize yield losses of 20-25%, which translates to the loss of more than half a million tons of the annual maize production — estimated at around $200 million. If the pest is left unrestrained, its impact will be huge for farmers and the economy.

This calls for a collective effort and broad mobilization to effectively manage fall armyworm and limit its spread across the country. Since the pest was expected to reach Nepal, partners have conducted workshops and community mobilization initiatives.

Experts at the International Maize and Wheat Improvement Center (CIMMYT) have been working with public and private partners before and after the arrival of the invasive pest in Nepal. The shared efforts have focused on creating awareness, disseminating appropriate technologies and management techniques, and strengthening the capacity of communities, institutions and governments.

The Ministry of Agriculture and Livestock Development has established a national taskforce to fight the pest. Most provinces have established similar taskforces that include researchers, agriculture extension agents, farmers and entrepreneur associations.

Training participants examine a fall armyworm on a maize leaf. (Photo: Bandana Pradhan/CIMMYT)

Fall armyworms are found on leaves in a maize field in Nepal. (Photo: Shailaja Thapa/CIMMYT)

A pheromone trap is installed next to a maize field in Nepal. (Photo: Bandana Pradhan/CIMMYT)

Participants in one of the trainings learn how to scout and collect data on fall armyworm in a maize field. (Photo: Bandana Pradhan/CIMMYT)

Training participants imitate the fall armyworm’s white inverted Y mark visible on the front of the head of the larva. (Photo: Bandana Pradhan/CIMMYT)

Gearing up to fight the very hungry caterpillar

In collaboration with national and provincial governments, CIMMYT has trained 426 agricultural professionals, including lead farmers, on how to identify and manage fall armyworm.

In February 2020, CIMMYT partnered with agricultural development directorates in two provinces to train 130 people on how to scout for fall armyworm and recommended solutions, based on integrated pest management principles.

In late 2019, CIMMYT engaged with the public and private sector through training workshops to disseminate proven practices to control the pest.

“Before, I was unable to recognize the pest that had destroyed my maize field. The hands-on training has been very informative,” said Urmila Banjgayu, a lead farmer who participated in one of the trainings. “I am certain to share the knowledge and practices that I learned with other farmers in my locality. They need to know what to do and what not to.”

Through the Nepal Seed and Fertilizer (NSAF) project, CIMMYT staff is working closely with the Ministry of Agriculture and Livestock Development, the Nepal Agricultural Research Council (NARC), the PQPMC, provincial governments, and other USAID-funded projects and development partners in Nepal. Together, they have developed integrated pest management packages, informative factsheets and surveillance guidelines. CIMMYT researchers have shared experiences on pest management, surveillance and scouting techniques from other countries in Asia and Africa. They have also demonstrated digital tools that will help map the spread of the pest and build accurate interpretation for better management.

Outreach workers use an auto-rickshaw equipped with a sound system and infographics to disseminate information about armyworm in Nepal’s Banke district. (Photo: Darbin Joshi/CIMMYT.)

Farmers listen to information about fall armyworm displayed on an auto-rickshaw in Nepal’s Banke district. (Photo: Darbin Joshi/CIMMYT)

Fall armyworm awareness campaign

Farmers must learn how to identify and manage this pest. Bijaya Ghimire, a lead farmer from Kanchanpur district, had heard about fall armyworm from a nearby seed company and a few of his friends. He informed the Agriculture Knowledge Center about the symptoms he observed in his maize field, and verification of the larvae and damage confirmed the presence of fall armyworm. Luckily, Ghimire was able to control the pest before severe damage was done.

CIMMYT researchers collaborated with the Prime Minister Agricultural Modernization Project (PMAMP) to implement outreach campaigns in Banke district. This included a mobile information booth, local dissemination of audio messages, and distribution of posters and fact sheets about fall armyworm. The two-day campaign successfully raised awareness about the pest, reaching more than 1,000 farmers from four villages in maize growing areas.

Researchers also worked with Scientific Animations Without Borders (SAWBO) and adapted an educational video on how to identify and scout for fall armyworm in a field into Nepali. In collaboration with the PQPMC, the video was broadcast 42 times on three local TV channels, to an estimated audience of more than one million viewers in June 2019. The video has also received over 2,000 online views. The animated video is being shown to farmers using mobile phones and displayed on big screens during community events and workshops.

“Seamless collaboration is required among the major stakeholders in the country to collectively fight the pest,” said AbduRahman Beshir, CIMMYT seed systems lead for the NSAF project and member of the national fall armyworm taskforce. “The potential impact of fall armyworm poses a fundamental challenge for smallholder farmers in Nepal. If unattended, it is going to be a food security issue and an equally daunting task to safeguard livelihoods.”