Predatory Flies : Predatory midges
categories: Natural Enemies Predatory Flies
last review date: 2025-08-23 07:04
Photo by: D.G. James
Biology
Predatory midges are tiny (< 1/8 inch) mosquito-like flies with a couple of species preying as larvae on aphids and mites.
The predatory gall midge (Feltiella acarisuga) specializes in feeding on spider mites while Aphidoletes aphidimyza attacks aphids.
Predatory midge larvae are similar to those of hover flies but much smaller and live in colonies of their prey.
Attracting and Keeping Natural Enemies
and Pollinators in Your Yard and Garden
- Native plants provide essential resources.
- Native flora also provides natural overwintering sites.
- Natural dispersion from nearby habitats ensures visitation.
- Some kinds of beneficial insects predatory mites are commercially available.
- Avoid regular use of synthetic, broad-spectrum pesticides.
- Infrequent use of certain narrow-spectrum pesticides is more compatible with some beneficials.
- Extensive lawns are also not conducive to attracting beneficial insects.
Management Options
See "Using Integrated Pest Management (IPM) in the Landscape" for successful problem management techniques.
Non-chemical Management
Select non-chemical management options as your first choice!
Mites, aphids, scale insects, thrips, caterpillars, beetle larvae, flies, wasps, grasshoppers, bees
Chemical Management
IMPORTANT: Visit Home and Garden Fact Sheets for more information on using pesticides.
- None recommended
WSU Extension programs and employment are available to all without discrimination.
Evidence of noncompliance may be reported through your local Extension office.