Phytoseiulus

Phytoseiulus
Phytoseiulus persimilis
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Arachnida
Subclass: Acari
Superorder: Parasitiformes
Order: Mesostigmata
Family: Phytoseiidae
Subfamily: Amblyseiinae
Genus: Phytoseiulus
Evans, 1952

http://www.ipm.ucdavis.edu/ http://www.biocontrol.entomology.cornell.edu/predators/Phytoseiulus.php

Phytoseiulus is a genus of mites in the Phytoseiidae family.[1] A predatory mite, this is the mite predator most frequently used to control two-spotted spider mites in greenhouses and outdoor crops grown in mild environments. This mite was accidentally introduced into Germany from Chile in 1958; it was subsequently shipped to other parts of the world, including California and Florida, from Germany. A Phytoseiulus mite can consume up to 7 adult spider mites or several dozen of their eggs in a day. Adult females are reddish, pear-shaped, approximately 0.5 mm long, and active at room temperature. Immatures and males are smaller and lighter in color. Eggs are oblong. About 80% are females. At optimum temperatures Phytoseiidae can develop from egg to adult in 7 days and live for up to 1 month. A well-fed female will lay about 50 eggs in her lifetime.[2]

Environment

Ideal temperature range is 70–85 °F (20–30 °C) with relative humidity of 70–80% inside the plant canopy. Minimum temperature for activity is 50 °F (10 °C). This predator does best when humidity is 60% or higher with a temperature range of 55–105 °F.[3]

Biology

(typical values @ 68–77 °F) sex ratio: 4 females/male
average eggs laid per day: 2.4
lifespan: 30–36 days - days from egg to adult: 7.5
average eggs per female: 54
population increase = 44 x in generation time of 17 days
prey consumed per day: 7 adults, 20 immatures or 25 eggs
[4]

Species

The genus Phytoseiulus contains the following species:[1]

References

  1. 1 2 de Moraes, Gilberto Jose. Hallan, Joel, ed. "Phytoseiidae Species Listing". Biology Catalog. Texas A&M University. Archived from the original on 12 December 2014. Retrieved 13 August 2015.
  2. Hydro-Gardens. "hydro-gardens Mite Control". Retrieved February 9, 2012.
  3. Hydro-Gardens. "hydro-gardens Mite Control". Retrieved February 9, 2012.
  4. Hydro-Gardens. "Persimilis Release Instructions" (PDF). Pest Control. Retrieved February 9, 2012.


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