| Biological control methods adopted in agriculture pest control are based on the |
| a) | Predator-prey interaction | b) | Prey feeding habitat |
| c) | Prey interaction with other predators | d) | Predator-predator interaction |
| (a)Biological control method in agriculture pest control based on the predator prey relationship.The prickly pear cactus introduced into Australia in 1920s caused Havoc by spreading rapidly into million of hactares of range land. Finally invasive cactus was brought under control only after a cactus-feeding predator (a moth) from its natural habitat was introduced into the country |