Biological control of the citrus red mite Panonychus citri by the predator mite Typhlodromus athiasae on two citrus cultivars under greenhouse conditions

Kasap I.

BIOCONTROL, vol.56, no.3, pp.327-332, 2011 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 56 Issue: 3
  • Publication Date: 2011
  • Doi Number: 10.1007/s10526-010-9340-8
  • Journal Name: BIOCONTROL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.327-332
  • Keywords: Biological control, Citrus, Panonychus citri, Predator:prey ratio, Typhlodromus athiasae, SPIDER-MITES, PHYTOSEIULUS-PERSIMILIS, TETRANYCHUS-URTICAE, ACARI
  • Çanakkale Onsekiz Mart University Affiliated: Yes


This study examined the efficacy of the predatory mite Typhlodromus athiasae Porath and Swirski (Acari: Phytoseiidae) as a biological control agent of the citrus red mite Panonychus citri (McGregor) (Acari: Tetranychidae) on seedlings of Washington and Valencia citrus cultivars at 1:10, 1:20 and 1:40 predator:prey release ratios under greenhouse conditions. At predator:prey ratios of 1:10, significant reductions on P. citri populations were observed one week after release of T. athiasae, and populations remained at low levels thereafter. The highest mean numbers of P. citri were found in the third week on the Washington cultivar and in the fourth week on Valencia, in a control group with no predators. This study demonstrates the potential of T. athiasae to effectively control P. citri on Washington and Valencia cultivars under greenhouse conditions at predator:prey ratios of 1:10. However, T. athiasae was unable to control the citrus red mite populations when the predator:prey ratio was reduced to 1:40. We therefore recommend a release ratio of 1:10 for effective control of P. citri in greenhouses on seedlings of Washington and Valencia citrus.