Dar es Salaam — Avocado is a fruit crop that thrives in many parts of Tanzania, with the possibility of using it to free Tanzanians from abject poverty and improve families' levels of nutrition. Mbeya, Njombe, Songwe, Iringa, Tanga, Arusha, Kilimanjaro, Kigoma, Kagera, Katavi and Morogoro are popular regions for…