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Study finds that 15% of Ivory Coast cocoa supplies are at risk from the disease.

According to a report by the non-profit Enveritas, the swollen shoots disease has worsened in Ivory Coast. This puts 15% of the country’s supply?of chocolate ingredient at risk.

The advocacy group, who surveyed more than?11600 cocoa -farms in Ivory Coast in 2024/25, found that 41% were infected by the virus, compared to 33% in two seasons.

Swollen shoots are spread by mealybugs, small insects that eat flowers, leaves and buds. They allow trees to grow at first, but only in a limited way. It kills the trees after five to ten years.

Enveritas claims that the disease reduces cocoa yields by 35%. This means that 15% of Ivory Coast’s cocoa supply is at risk, considering the number of farms infected in the country.

Enveritas said that this trend could indicate a 'heightened supply risk', a 'potential shift in sourcing strategy, and an urgent requirement to target interventions more accurately.

The Coffee and Cocoa Council of Ivory Coast (CCC) declined to comment.

In 2024, the price of cocoa nearly tripled as adverse weather conditions and an outbreak of swollen-shoot disease decimated the crop in Ivory Coast. Ghana is also a neighbouring country that produces about half the cocoa in the world.

Prices have fallen by?half in the past year, and they are expected to continue falling this year due to a global surplus. However, long-term supplies in West Africa remain at risk if the disease does not get under control.

Ivory Coast, Ghana and other countries are prone to swollen shoot. However, its spread has increased in the last few years due to a lack of financial resources to combat it. To combat the disease, trees need to be removed and burned before cocoa can replanted.

Ghana's 2023 survey showed that 31% of the total cocoa-growing area was infected by swollen stems, compared to 17% in 2017.

In the 1960s and 70s, the disease decimated Ghana’s cacao crop. Production dropped by half at a time that Ghana was the largest producer of this ingredient in the world. (Reporting and editing by Jan Harvey; May Angel, Reporting)

(source: Reuters)