classical biological control वाक्य

"The exotic nature of the mealy bug and the known effective natural enemy . . . indicate that classical biological control would be the most appropriate long-term strategy, " she said.
There are three basic types of biological pest control strategies : importation ( sometimes called "'classical biological control "'), in which a natural enemy of a pest is introduced in the hope of achieving control; augmentation, in which locally-occurring natural enemies are bred and released to improve control; and conservation, in which measures are taken to increase natural enemies, such as by planting nectar-producing crop plants in the borders of rice fields.