As locust swarms are threatening South Asian countries, China is planning to dispatch a 100,000-strong army of ducks to help Pakistan combat a massive locust infestation, a local newspaper reported Thursday.

The legion of lotus-eating waterfowl will be sent from the eastern province of Zhejiang following the earlier dispatch of a team of Chinese experts to Pakistan to advise on a response to the infestation that is being called the worst in 20 years, the Ningbo Evening News said.

China deployed ducks, whose natural diet includes insects, to fight a similar infestation in its northwestern region of Xinjiang two decades ago, reportedly with considerable effectiveness. Their use is both much less expensive and environmentally damaging than the use of pesticides, the paper quoted Zhejiang Provincial Institute of Agricultural Technology researcher Lu Lizhi as saying. Ducks are also more suited to the task than other poultry, such as chickens, Lu said.

Pakistan has declared a national emergency to battle the swarms of desert locusts which are eating crops on a large scale and raising fears of food insecurity.

Hundreds of millions of the voracious insects have swept across Ethiopia, Somalia and Kenya in what the U.N. has called the worst outbreak in a quarter of a century, with Uganda, Eritrea, Djibouti and South Sudan also affected. Authorities in those countries are already carrying out aerial spraying of pesticides, but experts say the scale of the infestation is beyond local capacity as desert locusts can travel up to 150 kilometers (about 93 miles) per day.