African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6638

Full Length Research Paper

Effect of physic-chemical parameters on the infestation of fruits by Ceratitis capitata WIEDDEMANN, 1824 (Diptera: Tephritidae)

F. METNA, D.SADOUDI-ALI AHMED*, B. METNA and F. MEDJDOUB
Faculté des Sciences biologiques et agronomiques, Université M. Mammeri de Tizi-Ouzou, Algeria.
Email: [email protected]

  •  Accepted: 31 October 2012
  •  Published: 31 December 2012

Abstract

 

To determine the effect of some physic-chemical parameters of fruits such as fruit weight, fruit diameter, thickness and the essential oil content of the peel, we followed the infestation by C. capitata Wied. 1824 (Diptera:Tephritidae), of ten fruit varieties: Oranges Thomson, Hamlin, Double Fine and Valencia late, lemons quatre saisons, apricot Bulida peaches Cardinal and Redhaven and figs Taghanimth, and Thâamrount. The physical-chemical parameters of fruits (weight, diameter, thickness of the bark and essential oil yield) are significantly correlated. They are negatively correlated with the average number of pupae / fruit. No correlation was observed between these parameters and the rate of fruit attacked and the number of attack per fruit.

 

Key words: Medfly, preference, essential oils, weight, diameter, thickness of the peel, fruit variety.