Facultative zoophytophages are common in a variety of habitats, and they differ among taxa in the potential benefits they offer. To use these insects as part of IPM programs, it is critical that we understand the relative amount of plant feeding (and potential damage from that feeding) versus the benefits that the predators offer by feeding on prey species. To advance the strategy for using facultative phytophages, we need additional research on the nutrition, life history, and physiological and morphological adaptations of these species, as well as a basic understanding of heteropteran phylogeny.