An insect that eats or destroys harmful garden insects. biennial:

In farming and 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; pest control, habitat integration, and ‘natural vitality’ aesthetics are the desired outcome with beneficial insects. [..]

insects that are considered friendly inhabitants in the garden, largely because they are predators of harmful pests; ladybugs and praying mantis are widely recognized as beneficial insects and sometim [..]

Insects that are beneficial for crop production because they pollinate plants, attack insect pests or serve other useful purposes.

An insect that has positive value in the garden because it preys upon harmful insects and or pollinates plants. Biennial

Insects that are beneficial to the garden by eating pests, pollinating plants, improving soil condition, re-cycling leaf matter etc. E.g. bees that pollinate, ladybird insects that eat aphids.

There are two kinds of beneficial insects. Predatory insects such as the Praying Mantis eat harmful insects. Parasitic insects lay their eggs in the pest insects. When the eggs hatch, the growing larv [..]

Insects that are beneficial for crop production because they pollinate plants, attack insect pests or serve other useful purposes.

Insects that help rather than hinder gardening efforts. They may do this by pollinating flowers, by eating harmful insects or parasitising them, or by breaking down plant material in the soil, thereby [..]

any of a number of species of insects that perform valued services like pollination and pest control.

Insects that help along a plant by parasitize or eat the insects that destroy plants. Examples of such insects include lacewings, dragonflies and ladybugs.

 An insect that eats or destroys harmful garden insects.

Insects that feed or parasitize pest insects or mites.