Functional response of Stethorus gilvifrons (Col: Coccinelidae) prey on adult females of the sugar cane mite Oligonychus sacchari (Acari: Tetranychidae)

Subject Areas : entomology and othea arthropods

A. Darabi ¹ ( Department of Plant Protection, Faculty of Agriculture, Yasouj University, Yasouj, Iran )
M. Haghani ² ( Department of Plant Protection, Faculty of Agriculture, Yasouj University, Yasouj, Iran )
A. Jamshidnia ³ ( Department of Entomology and Plant Pathology, College of Abouraihan, University of Tehran, Tehran, Iran )
A. A. Zamani ⁴ ( Department of Plant Protection, Faculty of Agriculture, Razi University, Kermanshah, Iran )
N. Farrar ⁵ ( Department of Plant Protection, Faculty of Agriculture, Razi University, Kermanshah, Iran )

Received: 2012-04-30 Accepted : 2013-06-17 Published : 2014-02-20

Keywords:

Abstract :

Functional response of Stethorus gilvifrons Mulsant on different densities of adult female mite Oligonychus sacchari McGregor on tree commercial cultivars of sugar cane (CP 48-103، CP 57-614 and CP 69-1062) was studied under laboratory conditions. Results of logistic regression revealed a type III functional response for all cultivars. According to the results searching efficiency of S. gilvifrons on CP 48-103, CP 57-614 and CP 69-1062 varying from 0.012- 0.60, 0.014- 0.70 and 0.014- 0.70 per h and the handling time was 0.366, 0.307 and 0.350 h, respectively.