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Take his figures with a grain of salt. For instance, opium planting has been increasing in all years since 2001 except for 2005. It also looks like in 2006 it increased again.
Here’s a quote from a 2006 State Department report on narcotics:
According to U.S. Government figures, there was a 48 percent decrease in poppy cultivation in 2005, down from record figures in 2004. However, due to favorable climate conditions, yield per hectare was up–resulting in only a 10 percent decrease in opium production. While we welcomed this decrease in 2005, early indications show that planting has significantly increased in 2006. According to the United Nations Office on Drugs and Crime’s (UNODC’s) Rapid Assessment Survey released in February 2006, poppy planting for the current growing season increased in 13 provinces, remained stable in 15, and decreased in only three.