Insect Cadaver Applications: Pros and Cons

Abstract

Application of entomopathogenic nematodes (EPNs) formulated as insect cadavers has become an alternative to aqueous application for the control of agricultural pests. In this approach, the infected insect host cadaver is applied directly to the target site and pest suppression is achieved by the infective juveniles (IJs) that emerge from the host cadavers. This type of technology could be especially effective for small– and medium–sized growers, with planted areas up to 10 ha, or for use in flower pots and home orchards, etc. The cost of production for cadaver–based formulations is low because it eliminates the need to capture and concentrate infective juveniles (IJs) and reduces storage costs required in production systems that involve aqueous suspension of IJs. Also, the insect cadaver represents a shelter from environmental extremes such as freezing. However, the insect cadaver approach has a number of downsides that demand further study and adaptation. In this chapter we review the development and application of the “cadaver approach” and discuss advantages and disadvantages as well as avenues for future research.