Beneficial insects (sometimes called beneficial bugs) are any of a number of species of insects that perform valued services like pollination and pest control. The concept of beneficial is subjective and only arises in light of desired outcomes from a human perspective. In agriculture, where the goal is to raise selected crops, insects that hinder the production process are classified as pests, while insects that assist production are considered beneficial. In horticulture and gardening, beneficial insects are often considered those that contribute to pest control and native habitat integration.
Encouraging beneficial insects, by providing suitable living conditions, is a pest control strategy, often used in organic farming, organic gardening or integrated pest management. Companies specializing in biological pest control sell many types of beneficial insects, particularly for use in enclosed areas, like greenhouses.
Some species of bee are beneficial as pollinators, although generally only efficient at pollinating plants from the same area of origin, facilitating propagation and fruit production for many plants. Also, some bees are predators or parasites of pests. This group includes not only honeybees, but also many other kinds of bees that are more efficient at pollinating plants native to their region. Bees can be attracted by many companion plants, especially bee balm and pineapple sage for honeybees, or Apiaceae like Queen Anne's lace and parsley, for predatory bees.
Wasps, especially fig wasps are also beneficial as pollinators.
Ladybugs are generally thought of as beneficial because they eat large quantities of aphids, mites and other arthropods that feed on various plants.
Other insects commonly identified as beneficial include:
Aphid midges
Assassin bugs
Damsel bugs
Earwigs
Green lacewings
Ichneumon wasps
Minute pirate bugs
Fireflies
Praying Mantis
Soldier beetles
Syrphid flies
Tachinid flies
Trichogramma wasps
Plants in the families Apiaceae and Asteraceae are generally valuable companions. Here are o
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Insectary plants are those that attract insects. As such, beneficial insectary plants are intentionally introduced into an ecosystem to increase pollen and nectar resources required by the natural enemies of the harmful or unwanted insects pests. Beyond an effective natural control of pests, the beneficial insects also assist in pollination. The "friendly insects" include ladybeetles, bees, ground beetles, hoverflies, and parasitic wasps. Other animals that are frequently considered beneficial include lizards, spiders, toads, and hummingbirds.
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