A farm worker picks avocados from Hoja Redonda plantation in Chincha, Peru, September 3, 2015. The eighth World Avocado Congress, an event dedicated to production, export and marketing of Hass avocados, will be held in Peru from September 13 to September 18. Peru is the second largest exporter of Hass avocados in the world, according to local media. REUTERS/Mariana Bazo