Utah State University Extension
Predatory insects can provide natural pest control by eating unwanted pests. Insect predators are one factor that help maintain pest populations at non-damaging levels, an action known as biological control. By conserving predatory insect populations, plants can be protected from pest attack and excessive damage.
Ramirez, Ricardo and Patterson, Ron, "Beneficial True Bugs: Big-Eyed Bugs" (2011). All Current Publications. Paper 859.