Economy
Rice Farmers Lose $200m Yearly to Parasitic Weeds
By Dipo Olowookere
An international team of researchers representing the Africa Rice Center (AfricaRice), the International Rice Research Institute (IRRI) and Wageningen University, has raised the alarm over the enormous economic impact of parasitic weeds on rice production in Africa, threatening the food security and livelihoods of millions of resource-poor rice farmers and consumers in the region.
Smallholder farmers in the continent are losing every year half a million tons of rice worth about US $200 million because of parasitic weeds.
This is roughly equivalent to the annual rice consumption of Liberia, a low-income country, which is highly dependent on rice imports.
If the rice lost due to the parasitic weeds had been saved, it would have been enough to feed the total population of Liberia (4.5 million people) for a whole year.
Parasitic weeds are among the most destructive and problematic weeds to control.
“When these plants invade food crops, they turn into ferocious weeds,” said Dr Jonne Rodenburg, Agronomist at AfricaRice.
The most important parasitic weed species in rice are Striga asiatica, S. aspera, S. hermonthica and Rhamphicarpa fistulosa. They are all endemic to Africa and can also parasitize other cereal crops like maize, sorghum and millet.
The team of researchers reveal that these parasitic weeds, which survive by siphoning off water and nutrients from host crops, have invaded 1.34 million hectares of rainfed rice in Africa, affecting an estimated 950,000 rural households. They are increasingly becoming severe due to an intensification of agricultural production and climate changes.
The areas affected by parasitic weeds are home to some of the world’s poorest farmers.
Studies by AfricaRice and partners have shown that parasitic weeds seem to predominantly affect women farmers in Africa as they are often forced to grow rice on the most marginal and parasitic weed-infested plots.
Parasitic weeds threaten rice production in at least 28 countries in Africa that have rainfed rice systems. The most affected countries are Burkina Faso, Cameroon, Côte d’Ivoire, Guinea, Madagascar, Mali, Nigeria, Sierra Leone Tanzania and Uganda.
The researchers warn that these parasites are spreading fast in the rainfed rice area and if nothing is done to stop them in their tracks, the damage will increase by about US $30 million a year.
These findings were revealed in a recent article by Rodenburg, Demont, Zwart and Bastiaans, entitled “Parasitic weed incidence and related economic losses in rice in Africa,” published in Agriculture, Ecosystems and Environment 235 (306-317).
Rice is the second most important source of calories in Africa. It is also critical for smallholder incomes. Demand for rice is growing at a rate of more than 6% per year – faster than for any other food staple in sub-Saharan Africa (SSA), because of changes in consumer preferences and urbanization. Rice production is increasing across SSA, but the continent still imports some 40% of its rice.
Until now, there has been little information on the regional spread and economic importance of parasitic weeds in rice in Africa. “We have presented in this article best-bet estimates on the distribution as well as the agronomic and economic impact of parasitic weeds in rice in Africa,” explained Dr Rodenburg. “In fact, this is the first multi-species, multi-country impact assessment of parasitic weeds in Africa.”
The article focuses on the four most important parasitic weeds in rice. Striga species – known under the common name “witchweed” – occur in at least 31 countries with rain-fed upland rice systems. Rhamphicarpa fistulosa – known under the common name “rice vampireweed” – threatens rice production in at least 28 countries with rainfed lowland rice systems.
Dr Sander Zwart, AfricaRice Remote sensing and Geographic information systems specialist, explained that for this study, a map of rainfed rice production areas, compiled from different databases, was overlapped with parasitic weed observation data retrieved from public herbaria to visualize regional distribution of these four important parasitic weeds.
From this overlap, probabilities of actual infestation were estimated. These estimates together with secondary data on parasite-inflicted crop losses and efficacy of weed control were combined into a stochastic impact assessment model.
The knowledge acquired on the distribution as well as the agronomic and economic impact of parasitic weeds in rice in Africa underlines the importance of finding effective measures to control these pests through research.
AfricaRice and its partners have been investigating and developing efficient parasitic weed management strategies that are affordable and feasible for resource-poor rice farmers. “A range of high-yielding, short-cycle, farmer-preferred rice varieties have been identified with resistance or tolerance to different species and ecotypes of Striga, as well as varieties with good defense against R. fistulosa,” said Dr Rodenburg.
He explained that such varieties can be combined with different agronomic measures, such as late sowing (against R. fistulosa) or early sowing (against Striga), and the use of organic soil fertility amendments. Growing a leguminous cover crop such as Stylosanthes guianensisand following a zero-tillage approach also contribute to effective control of Striga, as demonstrated by agronomic experiments conducted by AfricaRice and its partners.
To study institutional and socio-economic constraints underlying the challenge posed by the parasitic weeds, and to raise awareness and improve communication on efficient management strategies, AfricaRice and its partners have brought together stakeholders, including national research institutes, extension services, crop protection services and private sector representatives in workshops in East and West Africa.
At a time where there is a decline in public sector investments in agricultural research, efficient targeting of resources is becoming increasingly important. “The results of our studies emphasize the importance of targeted investments in further research, the development and dissemination of control technologies and capacity building of farmers, extension agents and other stakeholders, to reverse the observed trend of increasing parasitic weeds in rice,” stated Dr Rodenburg.
AfricaRice.
By Adedapo Adesanya
The Lagos Chamber of Commerce and Industry (LCCI) has noted that the N15.52 trillion allocation to debt servicing in the 2026 budget remains a significant fiscal burden.
LCCI Director-General, Mrs Chinyere Almona, said this on Tuesday in Lagos via a statement in reaction to the nation’s 2026 budget of N58.18 trillion, hinging the success of the 2026 budget on execution discipline, capital efficiency, and sustained support for productive sectors.
She noted that the budget was a timely shift from macroeconomic stabilisation to growth acceleration, reflecting growing confidence in the economy.
She lauded its emphasis on production-oriented spending, with capital expenditure of N26.08 trillion, representing 45 per cent of total outlays, and significantly outweighing non-debt recurrent expenditure of N15.25 trillion.
According to Mrs Almona, this composition supports infrastructure development, industrial expansion, and productivity growth.
However, she explained that the N15.52 trillion allocation to debt servicing underscored the need for stricter borrowing discipline, enhanced revenue efficiency, and expanded public-private partnerships to safeguard investments that promote growth.
She added that a further review of the 2026 budget revealed relatively optimistic macroeconomic assumptions that may pose fiscal risks.
“The oil price benchmark of $64.85 per barrel, although lower than the $75.00 benchmark in the 2025 budget, appears optimistic when compared with the 2025 average price of about $69.60 per barrel and current prices around $60 per barrel.
“This raises downside risks to oil revenue, especially since 35.6 per cent of the total projected revenue is expected to come from oil receipts.
“Similarly, the oil production benchmark of 1.84 million barrels per day is significantly higher than the current level of approximately 1.49 million barrels per day.
“Achieving this may be challenging without substantial improvements in security, infrastructure integrity, and sector investment,” she said.
Mrs Almona said the exchange rate assumption of N1,512 to the Dollar, compared with N1,500 in the 2025 budget and about N1,446 per Dollar at the end of November, suggests expectations of a mild depreciation.
She said while this may support Naira-denominated revenue, it also increases the cost of imports, debt servicing, and inflation management, with broader macroeconomic implications.
The LCCI DG added that the inflation projection of 16.5 per cent in 2026, up from 15.8 per cent in the 2025 budget and a current rate of about 14.45 per cent, appeared optimistic, particularly in a pre-election year.
She also expressed concern about Nigeria’s historically weak budget implementation capacity, likely to be further strained by the combined operation of multiple budget cycles within a single year.
Looking ahead, Mrs Almona identified agriculture and agro-processing, manufacturing, infrastructure, energy, and human capital development as key drivers of growth in 2026.
She said that unlocking these sectors would require decisive execution—scaling irrigation and agro-value chains, reducing power and logistics costs for manufacturers, and aligning education and skills development with private-sector needs.
The LCCI head stressed the need to resolve issues surrounding the Naira for crude, increase the supply of oil to local refineries to boost local refining capacity and conserve the substantial foreign exchange used for fuel imports.
“Overall, the 2026 Budget presents a credible opportunity for Nigeria to transition from recovery to expansion.
“Its success will depend less on the size of allocations and more on execution discipline, capital efficiency, and sustained support for productive sectors.
By Dipo Olowookere
The Nigerian Exchange (NGX) Limited witnessed Santa Claus rally on Wednesday after it closed higher by 0.12 per cent.
Strong demand for Nigerian stocks lifted the All-Share Index (ASI) by 185.70 points during the pre-Christmas trading session to 153,539.83 points from 153,354.13 points.
In the same vein, the market capitalisation expanded at midweek by N118 billion to N97.890 trillion from the preceding day’s N97.772 trillion.
Investor sentiment on Customs Street remained bullish after closing with 36 appreciating equities and 22 depreciating equities, indicating a positive market breadth index.
Guinness Nigeria chalked up 9.98 per cent to trade at N318.60, Austin Laz improved by 9.97 per cent to N3.20, International Breweries expanded by 9.85 per cent to N14.50, Transcorp Hotels rose by 9.83 per cent to N170.90, and Aluminium Extrusion grew by 9.73 per cent to N16.35.
On the flip side, Legend Internet lost 9.26 per cent to close at N4.90, AXA Mansard shrank by 7.14 per cent to N13.00, Jaiz Bank declined by 5.45 per cent to N4.51, MTN Nigeria weakened by 5.21 per cent to N504.00, and NEM Insurance crashed by 4.74 per cent to N24.10.
Yesterday, a total of 1.8 billion shares valued at N30.1 billion exchanged hands in 19,372 deals versus the 677.4 billion shares worth N20.8 billion traded in 27,589 deals in the previous session, implying a slump in the number of deals by 29.78 per cent, and a surge in the trading volume and value by 165.72 per cent and 44.71 per cent apiece.
Abbey Mortgage Bank was the most active equity for the day after it sold 1.1 billion units worth N7.1 billion, Sterling Holdings traded 127.1 million units valued at N895.9 million, Custodian Investment exchanged 115.0 million units for N4.5 billion, First Holdco transacted 40.9 million units valued at N2.2 billion, and Access Holdings traded 38.2 million units worth N783.3 million.
By Adedapo Adesanya
Nigerian food and beverage company, Rite Foods Limited, has extended warm Yuletide greetings to Nigerians as families and communities worldwide come together to celebrate the Christmas season and usher in a new year filled with hope and renewed possibilities.
In a statement, Rite Foods encouraged consumers to savour these special occasions with its wide range of quality brands, including the 13 variants of Bigi Carbonated Soft Drinks, premium Bigi Table Water, Sosa Fruit Drink in its refreshing flavours, the Fearless Energy Drink, and its tasty sausage rolls — all produced in a world-class facility with modern technology and global best practices.
Speaking on the season, the Managing Director of Rite Foods Limited, Mr Seleem Adegunwa, said the company remains deeply committed to enriching the lives of consumers beyond refreshment. According to him, the Yuletide period underscores the values of generosity, unity, and gratitude, which resonate strongly with the company’s philosophy.
“Christmas is a season that reminds us of the importance of giving, togetherness, and gratitude. At Rite Foods, we are thankful for the continued trust of Nigerians in our brands. This season strengthens our resolve to consistently deliver quality products that bring joy to everyday moments while contributing positively to society,” Mr Adegunwa stated.
He noted that the company’s steady progress in brand acceptance, operational excellence, and responsible business practices reflects a culture of continuous improvement, innovation, and responsiveness to consumer needs. These efforts, he said, have further strengthened Rite Foods’ position as a proudly Nigerian brand with growing relevance and impact across the country.
Mr Adegunwa reaffirmed that Rite Foods will continue to invest in research and development, efficient production processes, and initiatives that support communities, while maintaining quality standards across its product portfolio.
“As the year comes to a close, Rite Foods Limited wishes Nigerians a joyful Christmas celebration and a prosperous New Year filled with peace, progress, and shared success.”
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