(ECNS)-- Ducks are helping battling invasive locusts in Jiangcheng County, Pu'er City in China's bordering province of Yunnan.
One duck can eat some 200 locusts a day while doing little or no harm to local ecology.
The locusts have damaged at least 8000 hectares of crops in the province since late June.
Drones are also deployed to disperse eco-friendly pesticides.
