Indeed, the problem of contamination on the Ecuadorian side of the border, resulting from this fumigation has been an ongoing one which will require some sort of solution.
It assists in clearing the fields -- fumigation merely kills the leaves, not the roots of the sturdy coca plant -- and provides technical, micro-financial and marketing assistance.
The hard exchange of words between the two left a bitter taste, despite Uribe's offer to consider changing the fumigation method from aerial to manual so as to minimize the contamination.