In Uganda, where grasshoppers are regarded as a delicious seasonal snack, the appetite for the crispy critters has created a booming informal trade that has turned some trappers into wealthy men.
"They were just something you found in the grass during the rainy season," explains Ugandan Lawrence Mawanda. "I didn't know they could be profitable."
But 10 years ago on a trip through the Masaka region, the 53-year-old lorry driver glimpsed a row of rusty oil drums lining the roadside and fitted with long corrugated aluminum sheets shimmering under powerful fluorescent bulbs.
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