Parasitic Wasps : Ichneumonid and braconid wasps
categories: Natural Enemies Parasitic Wasps
last review date: 2025-08-23 06:03
Biology
This group of familiar parasitic wasps comprises a number of species that target caterpillars.
Adults usually measure from ½ to 1 ½ inches in length and are slender and long-legged with the abdomen longer than the head and thorax combined.
Many have a long ovipositor which is a needle-like structure at the end of the female abdomen used for inserting eggs into the host.
Prey or Pest Targeted
- Aphids, mealybugs, caterpillars, true bugs, beetles, grasshoppers, leafhoppers, spiders, whiteflies, insect eggs
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.
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.

