Predatory Mite, Phytoseiulus persimilis

Product Options

Product Details

Predatory Mite, Phytoseiulus persimilis is a very effective predator in controlling different species of pests mites especially red spider mites also known as two-spotted spider mites, Tetranychus urticae that cause a serious damage to many economically important crops and fruits grown in the greenhouses and/or fields. Adults of predatory mite, Phytoseiulus persimilis are orange in color. Females of Phytoseiulus persimilis generally lay about 60-80 oval shaped eggs amongst the colonies of pest mites. These eggs hatch into tiny non-feeding larvae with six legs. These larvae then develop through two developmental stages that termed as protonymphal and deutonymphal stages. Both these immature nymphal stages resemble to their parents. These two nymphal stages and adults are voracious feeders of pest mites. Depending upon the temperature, the development of these predatory mites varies between 5 and 25 days at 30 and 15°C (86-59°F), respectively.

Facts (show all)

- Effective against the following pest mites
  • Carmine red mite, Tetranychus cinnabarinus
  • Pacific mite, Tetranychus pacificus
  • Two-spotted spider mite, Tetranychus urticae
+ Key factors for Predatory Mite, Phytoseiulus persimilis effectiveness
  • Phytoseiulus persimilis are natural predators of pest mites.
  • Both adults and nymphs of this predatory mite feed voraciously on all the stages of pest mites.
  • However, nymphs of Phytoseiulus persimilis prefer to feed on the eggs and immature stages of pest mites.
  • The main characteristics of this predatory mite is that it grows faster than its host mites.
  • Adults of this predatory mite can feed on over 25 eggs, 15 nymphs and 5 adults of pest mites/day.
  • Phytoseiulus persimilis are very effective against pest mites and they can complete several generations when the temperature is above 15°C (59°F) and the relative humidity above 40%.
  • Adults of Phytoseiulus persimilis are very active and can move easily from one colony to other colony of pest mites. If the leaves of one plant touches to leaves of other plants, these predatory mites can easily move to other plants that are infested with pest mites.
  • Phytoseiulus persimilis are commercially available and can be released in the pest mite infested vegetable crops including bean, cucumber, eggplant, sweet pepper and tomatoes, and several ornamental plants including roses.
+ How Phytoseiulus persimilis mites work in the greenhouses or fields
  • Phytoseiulus persimilis are known to feed voraciously on their hosts including spider mites.
  • After application in the greenhouses or fields, predatory Phytoseiulus persimilis mite starts munching on their host mites.
  • Each adult mite can consume 25 eggs and 5 adults of pest mites per day.
  • While feeding, predatory mites develop and reproduce faster than their host mites.
  • Under favorable environmental conditions and if there is enough food around, these mite can recycle continuously (do not need to apply again and again) and help to keep the pest population under economic threshold level.
+ Predatory mite, Phytoseiulus persimilis feeds on following stages pest mites
  • The nymphs of predatory mites generally prefer to feed on the eggs but can feed on the larval and nymphal stages of pest mites.
  • Adults of this predatory mite can feed on all the stages such as eggs, larvae, protonymphs, deutonymphs and adults of pest mites.
+ How many predatory mites, Phytoseiulus persimilis should be release for the effective control of pest mites
  • 4-5 predatory mites/square feet (0.1 sq. meter) area bi-weekly, 2-3 times.
  • 5,000 to 25,000 predatory mites/acre, bi-weekly, 2-3 times.
+ When and how predatory mites, Phytoseiulus persimilis should be released
  • These predatory mites can be release in any cropping system where host mites are causing damage to crops.
  • As a curative measure these predatory mites should be released after you start noticing presence of pest mites on the plants.
  • Release Phytoseiulus persimilis mites when temperature is between 15-30°C (59-86°F) and the relative humidity is between 40-60%.
  • Release the adults of predatory mites by opening vials and sprinkling them on plant leaves.
+ Why you need them
  • they can reduce the crop damage by feeding on crop pests responsible for the damage
  • they can munch on different stages of their hosts including eggs
  • they are able to actively search for their hosts and feed on them
  • they can reproduce and continue their life cycle on the foliage after first application
  • they are commercially available and easy to apply in the greenhouses or fields
+ Why predatory mites are safer than traditional pesticides
  • they do not damage plants
  • can be used and applied around children and pets
  • do not cause any harm to the personnel involved in their production and application
  • food products are safe to handle and eat when they are treated with mites
  • they do not harm humans, animals and pollute the environment
+ Research Papers
  1. Barber, A., Campbell, C.A.M., Crane, H., Lilley, R. and Tregidga, E. 2003. Biocontrol of two-spotted spider mite Tetranychus urticae on dwarf hops by the phytoseiid mites Phytoseiulus persimilis and Neoseiulus californicus. Biocontrol Science and Technology 13: 275-284.
  2. Nicetic, O., Watson, D.M., Beattie, G.A.C., Meats, A. and Zheng, J. 2001. Integrated pest management of two-spotted mite Tetranychus urticae on greenhouse roses using petroleum spray oil and the predatory mite Phytoseiulus persimilis. Experimental and Applied Acarology 25: 37-53.
  3. Osborne, L. S. and Petitt, F. L. 1985. Insecticidal Soap and the Predatory Mite, Phytoseiulus persimilis (Acari: Phytoseiidae), Used in Management of the Twospotted Spider Mite (Acari: Tetranychidae) on Greenhouse Grown Foliage Plants. Journal of Economic Entomology 78: 687-691.

Questions or Comments?

Ask your question in the Questions and Comments area below.
Or send us a note using our contact form!

Questions or Comments:

Do you have a question or a comment about this product? Post it below.
The answer to your question could help someone else too!

comments powered by Disqus