Agriculture in Iran exports include fresh and dried fruits, nuts, animal hides, processed foods, caviar and spices. Pistachio, raisins, dates and saffron are the first four export products, from the viewpoint of value. Close to 8 million tons of agricultural products are exported annually (2008). But according to the Central Bank of Iran, only 3.2 million tons of "agricultural products" were exported in 2008 with a total value of $3.2 billion "which showed a 6.1 percent increase over the previous year". Agricultural and food stuff exports in years 2012-13 ending 21 March stood at $5.2 billion. During years 2013-14 ending 21 March agricultural
Pistachio by special machines to produce pistachio kernels. In California, almost all female pistachio trees are the cultivar 'Kerman'. A scion from a mature female 'Kerman' is grafted onto a one-year-old rootstock. Pistachio trees are vulnerable to numerous diseases and infection by insects such as "Leptoglossus clypealis". Among these is infection by the fungus "Botryosphaeria", which causes panicle and shoot blight (symptoms include death of the flowers and young shoots), and can damage entire pistachio orchards. In 2004, the rapidly growing pistachio industry in California was threatened by panicle and shoot blight first discovered in 1984. In 2011, anthracnose fungus caused