A moth introduced into Australia in 1920s helped in control of prickly pear cactus. The interaction between moth and cactus is

The prickly pear cactus introduced into Australia in the early 1920’s caused havoc by spreading rapidly into millions of hectares of rangeland. Finally, the invasive cactus was brought under control only after a cactus-feeding predator (a moth) from its natural habitat was introduced into the country.