Beneficial insects are insects which you can attract to your garden, or buy from catalogues, which prey on harmful insects or their larvae. There are many different species for specific problems, and more information is available at several of the links listed on this page.
Brachonids,Chalcids and Ichneumon Wasps
These small beneficial insects destroy leaf-eating caterpillars. You can attract them to your garden by planting carrots, celery, parsley, caraway and Queen Anne’s lace, all members of the Umbelliferae family. These plants are easy to grow, and some should be left to flower. It’s the flower that attracts the insects.
These common insects consume aphids, mites, whiteflies and scale. They can be attracted to your garden by planting members of the daisy family (Compositae), tansy or yarrow.
Lacewings are avid consumers of aphids, and their larva eat aphids and other varieties of other insect pests. They are attracted to “composite” flowers, such as yarrow, goldenrod, black-eyed susan’s and asters. Hover-flies Hover-flies are avid consumers of aphids, and the larva of hover-flies eat aphids and other insect pests. Like the Lacewings, they are attracted to “composite” flowers, such as yarrow, goldenrod, black-eyed susan•s and asters.
These large insects have an appetite for most garden pests. Praying mantis eggs are set out in the garden where they hatch and quickly grow to adult size.