Midges are almost alone in their responsibility, primarily because of their size. Forcipomyia are only around one to three millimetres in length. This makes them the perfect size to access the hooded, ...

Co-author Dr Acheampong Atta-Boateng, who recently completed his doctoral work at the University of Oxford, said: 'Cocoa is pollinated by tiny insects such as midges and thrips, and it comes as ...