Minute Pirate Bug

by Nanette Londeree, Master Rosarian

SIGNS

  • Tiny insect, 1/12 to 1/5 inch long, oval with a triangular head, black to purplish with white markings at the base of the front wings giving a band-like appearance across the body when wings are at rest
  • Pear-shaped and yellowish or reddish brown nymphs with red eyes

SYMPTOMS

None

CAUSE

Minute pirate bug, Orius spp. and Anthocoris spp

OPTIMAL CONDITIONS

  • Insect predators in many crops including alfalfa, corn, small grains, cotton, soybeans, and tomatoes
  • Also found on ornamental plants and in landscapes
  • Feed on insect eggs and small insects such as psyllids, thrips, mites, aphids, whiteflies and small caterpillars
  • Adults overwinter in protected habitats such as leaf litter

TREATMENT

Prevention:

None – you want to encourage this guy into the garden
Prevent getting bitten by this bug by wearing dark, protective clothes in late summer

Elimination:

None

GOOD GUY / BAD GUY?

This is a very good garden guy – while not very large, they are fierce predators!
Their bite is surprisingly painful and people differ in their response to the bites – some swell up like a mosquito bite, some turn red and for others there is no reaction at all; if you react to their bite, they’re probably a bad guy

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