The trees are a member of the same family as poison ivy, and like poison ivy, cashew plants contain a toxin called urushiol. It's found in the plant itself and the brown oil inside a nut's shell.

Farmers are not planting enough new trees and they have not embraced proper crop husbandry. The Coast region had 2.1 million trees in 2009 according to a cashew-nut-tree census and baseline survey ...