Aphidius matricariae - 500 Adults (Bottle)


SKU: WRAM5C

These are live insects and MUST be shipped OVERNIGHT. No USPS or ground shipping. 

A parasitic wasp that attacks several species of aphids. Used mostly in greenhouses producing vegetables and ornamentals. Adult wasps are black. Adult females lay eggs from their abdomen by quickly curling their abdomen and puncturing an aphid simultaneously with its ovipositor. The egg once inside the aphid will hatch into a larva and consumes the aphid. The larvae when fully grown will cut a slit in the carcass and attaches itself to a fixed object. The larvae then pupates (spins a cocoon) inside the dead aphid. The mummified aphid swells into a characteristic round, golden brown mummy. The emerging adult will cut a symmetrical hole at the rear end to escape from the mummified aphid. After injecting the aphid with an egg it takes about a week for the mummy to form and then another week for the adult to appear. Each female can lay more than 100 eggs, but may attack 200-300 aphids in the process. 

LIFESPAN: Egg to adult about 2 weeks, adults live for about 14 days 

RELEASE INSTRUCTIONS: Once you have made it home with your Aphidius you MUST use them immediately. Aphidius cannot be stored. Release wasps between plants in the morning or evening in mild/cool temperatures and low light levels. Release at two different times, 1 week apart. Apply this parasite before a colony of aphids are large. Be proactive not reactive. Aphidius matricariac are shipped in container 250 adults each. 

RELEASE RATES: 500 insects treats approx. 1 Acre. These rates are for preventative control only, multiple releases and/or higher quantities are necessary for heavier infestations.