Stethorus punctillum

Stethorus punctillum predatory ladybug





Description


Stethorus punctillum is a small black ladybug, around 1.5 mm long, with little yellow antennae. The larvae are dark in colour. The eggs are oval-shaped and yellow, generally laid near pest mite colonies.

The larvae and adults are predators that feed on all stages of several mite species, including the two-spotted spider mite, spruce spider mite, southern red mite and European red mite.

This little ladybug has proven to be excellent at controlling pest mite infestations. It flies with ease and is able to detect sources of infestation. Unlike Neoseiulus fallacis and Phytoseiulus persimilis, it can be used in high-temperature, low-humidity conditions.

Availability


For the commercial market only.

Targeted crops



  • Market garden crops (cucumber, tomato, pepper, melon, etc.)
  • Ornamental plants
  • Marijuana (cannabis)

Targeted pests



  • Two-spotted spider mite (Tetranychus urticae)
  • Spruce spider mite (Oligonychus ununguis)
  • Southern red mite (Oligonychus ilicis)
  • European red mite (Panonychus ulmi)

Life cycle


  • The life cycle is 14-20 days at 21-26 °C
  • The optimal development conditions are a temperature between 16 to 35 ° C and a relative humidity between 30 to 90%.
  • The female lays 3-13 eggs a day for a total of 1000 eggs during her life.
  • Each larva can eat up to 240 mites during its development.
  • The duration of larval stage is 10 to 14 days.
  • The larvae pupate under the leaves or on the greenhouse structures. Adults emerge after 6-7 days.
  • The adult can eat 50 eggs and 10 spider mites per day.
  • Stethorus punctillum becomes inactive when temperatures fall below 12 °C

Format



Container

  • with small strips of paper or straw containing 50 or 100 adults.

Introduction rate



Stethorus punctillum
Crops Quantity Surface Frequency Duration
General See surface 100 adults / source of infestation or 10 adults / infested plant week for 3 to 4 weeks

Additional information



  1.   - Biological control Stethorus punctillum (Cornell University, 2018)
  2.   - Seasonal activity of the spider mite predators Stethorus punctillum (Coleoptera: Coccinellidae) and Neoseiulus fallacis (Acarina: Phytoseiidae) in raspberry, two predators of Tetranychus mcdanieli (Acarina: Tetranychidae) (Biological Control, 2005)
  3.   - Stethorus/Spider Mite Destroyer (OMAFRA, 2009)
  4.   - Stethorus Technical Manual (Applied Bio-nomics Ltd., 2018)
  5.   - The effects of temperature, relative humidity and hostplant on the behaviour of Stethorus punctillum as apredator of the two-spotted spider mite, Tetranychusurticae (BioControl, 2000)
  6.   - The predatory beetle, Stethorus punctilium (Applied Bio-Nomics Ltd., 2015)

Targeted pest


Targeted production




Recent news


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