Predator-free: Complete removal trial worked on possumsA survey estimated eight to 15 possums were living in the trial area, or about 11.5 possums per international rugby pitch. What would it take to eliminate possums and rats completely from an area using 1080 poison, a group of researchers wondered? The grey area shows where 1080 was dropped, the blue lines show the representative sample area. "The complete removal of possums and rats appears to have been successfully achieved within the treatment area," concluded a Zip technical report on the trial. These novel 1080 techniques might be used one day to help rid all of New Zealand of possums and rats.

Source: Stuff December 17, 2017 15:56 UTC