EFEBy Paula Bayarte Andahuaylas, Peru

Silvia Moran knows which of her hundreds of trees produce the largest avocados and can differentiate without hesitation among nearly identical varieties.

And now, thanks to a mobile app that connects farmers with their end consumers, those large, single-seeded berries she grows under a blazing sun in a high-Andean community are making their way to tables in Peruvian cities without hardly any intermediaries.

"This avocado you see is totally organic. It has no chemicals, we don't use any chemical products. To this day we still use livestock manure" as fertilizer, Moran showed Efe during a tour of her avocado trees near Huayana, a rural community in the southern Peruvian province of Andahuaylas.