Disease halves Afghan opium crop
Afghanistan's opium production declined by almost half this year due largely to the spread of a disease which damaged poppy plants, the UN's drug agency has said.
However, the amount of land used for growing the crop remained the same.
The United Nations Office on Drugs and Crime said Afghanistan's opium production in 2010 is estimated at 3,600 metric tons (3,968 tons), a 48% decrease from 6,900 tons in 2009 and the lowest since 2003. Opium is the main ingredient in heroin.
The drop was caused for the most part by a poppy plant infection which started to appear after spring flowering and hit the southern provinces of Helmand and Kandahar especially hard, according to the summary of UNODC's annual Afghan Opium Survey.
The two provinces are major growing areas in southern Afghanistan, and the centre of the Taliban-led insurgency.
"This is good news but there is no room for false optimism," UNODC executive director Yury Fedotov said in a statement.
In the south, "opium yields on disease-affected fields were only 13% to 39% of the amount farmers would have normally harvested from fields with similar numbers and sizes of capsules," the survey said.
The country's western region, which borders Iran, was also affected, but to a lesser degree. Farmers there most frequently named frost as the cause of plant damage.
As a result, Afghanistan's average opium yield fell 48% to 29.2kg (64.4lb) per hectare this year from an estimated 56.1kg (123.7lb) per hectare in 2009.
Still, the south remained Afghanistan's largest opium maker and made up 83% of total production, followed by the country's western region with 13%. Overall, 98% of opium cultivation - stable at 123,000 hectares (303,933 acres) - was concentrated in these two areas, which are largely in the hands of insurgents and organised crime groups.