Definitions for "Beneficials"
organisms that provide a benefit to crop production, applied especially to natural enemies of pests and to pollinators such as bees.
Insects, spiders, predatory mites, and centipedes --both native and introduced-- that assist in the control of pest populations. Individual species have a taste for specific pest groups, so some investigation needs to go into your choice of which beneficial to release. Bees are considered beneficial as well, though for their work in pollination and not pest control.
These are the much favored insects, arachnids, nematodes, and other organisms that eat or parsitize harmful insects and mites. Many beneficials already exist in our gardens, others can be purchased from nurseries or mail-order houses.