The black sugar cane is everywhere. It seems this delicacy, delivered on tricycles is most popular. The cane is peeled - often in the streets leaving a pile of shredded black "skin" on the pavement. The cane is then chopped into pieces abut 12 inches long, and handed to the customer in a plastic bag, which is used as a "handle" to hold it.
The customer chews off a chunk, chews and chews until the 'goodness' is gone and then the shreds of unwanted cane are spat out onto the road. So small piles of while shredded fibre appear all along the roadway, adding to the pollution.
It is a very popular delicacy. (not for me though!)