Aphelinus abdominalis - 250 Adults (Vial)


SKU: WRAAB250

These insects MUST be shipped overnight. 

Aphelinus abdominalis are parasitic wasps. Adults are about 2.5-3 mm in length with short legs, short antennae and a yellow abdomen. The other stages of development occur inside the host. A female can lay up to 250 eggs in a 3 week cycle. The female wasp will lay an egg directly into the aphid body where it hatches and the larvae will consume the aphid's body from within. When the parasite larva is fully grown, the host hardens into a leathery black colored mummy. The aphid turns black 7 days after parasitism. The mummy then takes an additional 14 days to develop into an adult wasp. The adult wasp emerges through a jagged edged hole at the rear of the mummy. The first mummies should be seen in your crops in a minimum of 14 days after the first release. 

RELEASE INSTRUCTIONS: Once you have made it home with your Aphidoletes you MUST use them immediately. Aphidoletes cannot be stored. Minimum of 250 viable adults per unit. A food source is provided to ensure that emerged adults arrive in the best possible condition. Aphelinus tend to walk over crops rather than fly, so it remains on the crop and does not readily leave the greenhouse. Proper identification of the aphid species is important. Monitoring the crop closely and early releases will help in overcoming the pest. Pesticides and even wetting agents and spreader-stickers may adversely affect A. abdominalis survival. Broad spectrum and systemic insecticides are toxic to these wasps. 

RELEASE RATES: 250 Insects cover 125 square feet. These rates are for preventative control only, multiple releases and/or higher quantities are necessary for heavier infestations. Click each product pic to get more information about that product. Apply this parasite before a colony of aphids becomes large. Be proactive not reactive.