Northern Chinese forestry authorities released over half a billion bees in order to suppress a destructive plague of American moths, according to Xinhua:
The bees use their stingers to bore into white moths’ pupa and kill their larvae. The bees have been previously used to eliminate moth infestations in the provinces of Hebei and Shandong.
Known as the “forest locust,” the moths can destroy more than 300 plants and consume the leaves of two hectares’ worth of poplar trees within two days.
Parasites have also been used in the past as a natural means of controlling the moths. More recently, a Shenzhen property developer was accused of using scorpions to clear out a stubborn infestation of tenants.