Effect of Releases of Phytoseiulus persimilis in the Control of Two Spotted Spider Mite on French Beans

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Authors

  • Division of Entomology and Nematology, Indian Institute of Horticultural Research, Bangalore 560 089 ,IN
  • Division of Entomology and Nematology, Indian Institute of Horticultural Research, Bangalore 560 089 ,IN

DOI:

https://doi.org/10.18311/jbc/1989/4208

Keywords:

Phytoseiulus perslmilis, Tetranychus urticae, Control, French Beans.

Abstract

The effect of 2 different rates of release of an exotic predatory mite, Phytoseiulus persimillis of Athlas. Henriot on two-spotted spider mite, Tetranychus urticae Koch. on French beans was investigated. Release of predatory mite significantly reduced the population of spider mites in release plots compared to check. A release rate of 10 adults per plant gave better control than did 5 adults per plant. The mean fruit yield was also significantly higher in release plots than the check.