Cocoa Pollination for Optimised Production

Billes, D.J. (1941) Pollination of Theobroma cacao L. Tropical Agriculture (Trinidad), 17, 151.
  Frimpong, E.A., Gordon, I., Kwapong, P.K. & Gemmill-Herren, B. (2009) Dynamics of cocoa pollination: tools and applications for surveying and monitoring cocoa pollinators. International Journal of Tropical Insect Science, 29. [pdf]
  Posnette, A. (1944) Pollination of cacao in Trinidad. Tropical Agriculture (Trinidad), 21, 115-118.
  Saunders, L.G. (1959) Methods for studying Forcipomyia midges, with special reference to cacao-pollinating species (Diptera: Ceratopogonidae). Canadian Journal of Zoology, 37, 33-51. [journal link]