Biological pesticides for Africa: why has so little of the research undertaken to date resulted in new products to help Africa's poor?

@article{Grzywacz2009BiologicalPF,
  title={Biological pesticides for Africa: why has so little of the research undertaken to date resulted in new products to help Africa's poor?},
  author={David Grzywacz and Andrew Cherry and R. Charon Gwynn},
  journal={Outlooks on Pest Management},
  year={2009},
  volume={20},
  pages={77-81}
}