Brown Lacewing (Micromus variegatus)

Brown lacewing (Micromus variegatus) insect predator


Brown lacewing (Micromus variegatus) is an exceptionnal aphids predator. It was first collected when looking for Foxglove Aphid parasitoids in pepper crops. During the pepper survey, this species was frequently associated with active Foxglove Aphid colonies.

Adult are delicate insects, 1,5 cm long. They are brown, with oval wings and long antennae.The eggs are laid on plants, generally near aphid colonies. The larvae are predatory, with strong mandibles (mouthparts) that enables them to seize their prey.

Unlike most green lacewings, brown lacewings are predatory at all mobile stages ot their live-cycle. In fac, it is the adult that does most of the predation, usually at night.


For the commercial market only.

Targeted crops

  • Greenhouse vegetables (tomatoes, cucumbers, sweet and hot peppers, lettuce, etc.)
  • Vegetables grown outdoors (celery, cruciferous vegetables, lettuce, peppers, potatoes, etc.)
  • Orchards
  • Ornamental plants
  • Small fruits (strawberries, raspberries, grapes, etc.).
  • Trees, bushes and shrubs (rose bushes, apple trees, arrowood, etc.)

Targeted pests

  • Aphids
  • Thrips

Life cycle

  • Optimal conditions for development are temperatures between 20 and 31o C, with more than 30% relative humidity.
  • Eggs are laid low in the plant.
  • Females lay 100 tp 150 eggs in their lifetime.
  • Adult and larva can consume 20 to 25 aphids per day.
  • Do not enter dipause under short-day conditions.



  • AB020 - Micromus variegatus - 50 adults
  • AB021 - Micromus variegatus - 100 adults

Introduction rate

Corps Quantity Surface Frequency Duration
Preventive 0,1 adult per m2 as needed as needed
Curative 1 adult per m2 as needed as needed

Additional information

  1.   - Applied Bio-nomics Ltd. - Brown Lacewing System (Applied Bio-Nomics Ltd., 2015)
  2.   - Combining lacewings and parasitoids for biological control of foxglove aphids in sweet pepper (Journal of Applied Entomology, 2016)
  3.   - Lacewings in the Crop Environment (Cambridge University Press, 2001)

Targeted pest

Targeted production

Recent news

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