Ian Neubauer in Al Jazeera:
In wealthier countries, rodenticides like bromadiolone that prevent blood from clotting are used to combat plagues of rats and mice. But they also poison non-target species, soil, water and sometimes the farmers who apply them, and can be prohibitively expensive.
But a team of researchers from the National University of Laos and Australia’s Monash University have discovered a much simpler, cheaper and environmentally friendly solution that utilises existing indigenous rodent hunting tools and know-how: an economic game that pools together the efforts of villagers, and rewards those who kill or capture the most rats.
More here.