Aphidius colemani

Aphidius colemani parasite les pucerons





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Identification card icon Identification

Aphidius colemani is a parasitoid wasp that specialises in parasiting the green peach aphid (Myzus persicae) and the melon aphid or cotton aphid (Aphis gossypii). This wasp is used extensively in ornamental and greenhouse vegetable crops.

The adult is black with yellow legs. This parasitoid wasp has long antennas and is about 2 mm long. After mating, the female lays her eggs inside juvenile or adult aphids. The larvae of Aphidius colemani grows inside them and feed on the internal organs of the aphid. After 7 days, the aphid becomes immobile, inflates and turns beige. This stage is called mummy. A new adult emerges from the parasitized aphid after a few days.

Aphidius colemani is used in greenhouse and demonstrates great ability to control aphid infestations. It is advisable to use this biocontrol agent as a precaution with the introduction of Aphid Banker Plants. In summer, Aphidius colemani should be used with Aphidoletes aphidimyza or with convergent lady beetle. Control is achieved when 80% of the aphids are parasitized. .

  • Ornamental crops
  • Vegetables
  • Fruits

  • Green peach aphid (Myzus persicae)
  • Melon or cotton aphid (Aphis gossypii)

  • The optimum conditions are a temperature between 18 and 25 ° C and a relative humidity between 60 and 80%.
  • Complete life cycle takes 14 days at 21 ° C.
  • The female lays more than one hundred eggs during her life.
  • The mummy stage occurs about 7 days after laying.
  • The adult lives 2 to 3 weeks depending on the temperature.
  • Do not enter diapause.

Tube

Bottle with Aphidius colemani

Tube containing mummies/adults of Aphidius colemani

Application rate

Aphidius colemani
Introduction Quantity Surface Frequency Duration
Preventive 0,25 per m2 as needed as needed
Curative light 1 per m2 7 days 2 to 3 introductions
Curative heavy 2 per m2 7 days 3 to 6 introductions

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    Aphidius colemani

  1.   - Aphidius (Aphidius matricariae, A. colemani and A. ervi) Aphid parasites - Applied Bionomics Ltd (2018)
  2.   - Aphids in Greenhouse Crops - OMAFRA (2017)
  3.   - Aphid Banker Plant System for Greenhouses IPM, Step by Steph - Univ. of Vermont & BioBest USA, inc. (2011)

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