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


Affiliations
1 Division of Entomology and Nematology, Indian Institute of Horticultural Research, Bangalore 560 089, India
 

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.

Keywords

Phytoseiulus perslmilis, Tetranychus urticae, Control, French Beans.
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  • Effect of Releases of Phytoseiulus persimilis in the Control of Two Spotted Spider Mite on French Beans

Abstract Views: 190  |  PDF Views: 98

Authors

A. Krishnamoorthy
Division of Entomology and Nematology, Indian Institute of Horticultural Research, Bangalore 560 089, India
M. Mani
Division of Entomology and Nematology, Indian Institute of Horticultural Research, Bangalore 560 089, India

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.

Keywords


Phytoseiulus perslmilis, Tetranychus urticae, Control, French Beans.