London – As she grew older, Juliet Owusu Addai struggled to carry out essential tasks on her cocoa farm Ghana because of her blurred vision.
Only 10% of cocoa flowers self-pollinate naturally. The farmers must hand-pollinate hundreds of flowers, transferring pollen using a small pair of tweezers. They also have to sort the cocoa beans ready for market. Increasingly, farmers and buyers use mobile phones to trade,