Overview

• The cacao swollen shoot virus disease (CSSVD) is rapidly spreading through West Africa, home to about half of the world's chocolate production.
• Mealybugs, which spread the virus, are proving difficult to control, rendering traditional pesticides ineffective.
• Innovative mathematical models are being developed to help farmers plant vaccinated trees strategically to curb the spread of the virus.
• Despite efforts, the virus has already caused significant harvest losses, threatening the livelihood of farmers and the global chocolate market.
• Researchers are optimistic about the new strategies, which could protect crops and improve harvests while being cost-effective for farmers.