Burkina Faso abandons GM Bt cotton

This story of a major GMO failure is documented in a new briefing[1] by Brian Dowd-Uribe, Assistant Professor in the International Studies Department at the University of San Francisco and Matthew A. Schnurr, Associate Professor in the Department of International Development Studies at Dalhousie University. The briefing appears in the journal African Affairs, which is published by Oxford University Press.

The briefing traces the rapid decline of Burkina Faso’s cotton crop following the introduction of GM Bt cotton. At the time, Burkinabè cotton was renowned for its high quality, the product of a highly successful non-GM breeding programme founded by the French government and spanning 70 years.

The main goal of the breeding programme was to create cultivars that were well adapted to the growing conditions in West Africa and had the desired quality characteristics, such as a high ginning ratio (the percentage of the desired cotton fibre per unit weight of cotton delivered to the factory) and long staple length.

GM Bt cotton adoption prompts decline in quality

When Burkina Faso first grew GM Bt cotton in field trials, officials were initially satisfied with the quality of the cotton, the briefing states. The quality characteristics for which Burkinabè cotton was famous were maintained.

GM Bt cotton was commercialised in Burkina Faso in 2009. But during the first years of commercial release, Burkinabè officials noticed declines in staple lengths and ginning ratios. Monsanto employees blamed water stress and other weather problems. However, the quality problems persisted and by the 2013/14 season over two-thirds of the nation’s crop was classified as lower-quality medium staple length, with only a third retaining its previous classification as medium to high staple length. The ginning ratio remains well below the 42% achieved by non-GMO cultivars.

The authors of the new paper conclude that the decline in staple length “has undermined the reputation of Burkinabè cotton and cut into its value on the international market. When coupled with the decline in overall lint due to the lower ginning ratio, the inferior quality characteristics of the Bt cultivars have compromised the economic position of Burkinabè cotton companies.”

The experience of Burkina Faso makes clear that focus on yield is not the defining factor of a crop’s success. The yield in Burkina Faso was high – in the most recent growing season, it produced over 700,000 MT of cotton, while neighbouring Mali produced only 500,000 MT. Yet within a few months Mali’s entire product had been sold on the international market, while most of Burkina Faso’s languished awaiting export. One high-ranking official lamented, “What is the point in being the top producer if you can’t even sell your cotton?”

Unexpected effects of the GM transformation

The story of the decline of Burkina Faso’s cotton points to a problem with the GM process in general – that of pleiotropic effects, which means that the inserted GM gene influences other seemingly unrelated genes.

In theory, as the new briefing notes, inserting the Bt gene into the Burkinabè germplasm should have left the resulting GM crop identical to its parent in every way except for the inserted trait conferring insect resistance. But in reality, the process of inserting the Bt trait into the local variety appears to have interfered with some of its most important characteristics. Monsanto scientists “are at a loss to explain the precise mechanism that has created these problems”.

Cotton companies lose patience with Monsanto

Monsanto is still trying to reach a solution to the problem, including backcrossing its Bt varieties into a new local cultivar. Meanwhile Burkina Faso’s cotton companies have lost patience and have taken matters into their own hands. Dowd-Uribe and Schnurr explain in their briefing: “Frustrated with Monsanto’s inability to identify and correct these declines in quality, the companies set a timeline for abandoning Bt cotton and returning to conventional Burkinabè cultivars.”

The companies plan on reducing the amount of Bt cottonseed on the market from 53% in 2015/16 to 30% in the 2016/17 growing season, with the goal of a complete return to non-GM cotton in time for the 2017/18 season. They are also demanding USD 280 million from Monsanto in compensation for losses incurred due to declines in quality since 2010.

Will Africa turn its back on GM?

Dowd-Uribe and Schnurr conclude that Burkina Faso’s phase-out could stall or even end negotiations to adopt GM cotton in other African countries with similar concerns over cotton quality.