This project is to summarise a series of trials that were a part of two dovetailing postgraduate studies. One study examined the utilityof two generalist predators – white-collared ladybird (Hippodamia variegata) and Tasman’s lacewing (Micromus tasmaniae) in an island setting and their potential use as a part of conservation biological control. The other study examined the same generalist predators’ utility in a greenhouse context. These two studies have contributed to the understanding and future use of two very important biological control agents.