bush mango Irvingia is a genus of African and Southeast Asian trees in the family Irvingiaceae, sometimes known by the common names wild mango, African mango, bush mango, dika, mbukpap uyo or ogbono. They bear edible mango-like fruits, and are especially valued for their fat- and protein-rich nuts.
I no that ogbono tree grows in many part of Nigeria and not only in the niger state region. But the production is more high in Niger Delta then other places