Parasitism of Pieris brassicae (L.) (Lep.: Pieridae) on cabbage farms in comparison with wild hosts and study on use of Pteromalus puparum (L.) (Hym. Pteromalidae), as a biological control agent versus this pest

Abstract :

During the recent decade, the high risks and detrimental consequences associated with the use of chemical and even microbial pesticides have been a recurring theme in pest control, and researchers have been trying to pursue low-risk and environmentally sound tactics. However, biological control is a non-chemical method that utilizes natural enemies for suppression and regulation of insect pest populations. This study was performed in order to assess parasitism rate and parasitoid diversity of Cabbage Large White Butterfly, Pieris brassicae (L.) (Lep.: Pieridae), on cabbage fields in comparison with wild hosts in Urmia. Also In this study some biological and behavioral characteristics of Pteromalus puparum (L.) (Hym.: Pteromalidae(, predominant endoparasitoid wasp of P. brassicae, was studied. For this purpose, samples were taken from various cabbage farms and wild hosts of this pest outside the farm. The specimens have been collected from all stages of P. brassicae. In order to parasitoids emerge, samples incubated separately in laboratory conditions at 23 ± 1°C, 40 ± 5 % r.h. and 16:8 h (L:D) photoperiod. The other main purpose of this study was to evaluate the efficacy of P. puparum in the biological control of Cabbage Large White Butterfly

Keyword :

Pieris brassicae, Pteromalus puparum, Biological control, Parasitism, Cabbage

Author(s) : Razmi, M., Karimpour, Y., Safaralizadeh, M. H.
Downloads : 2217
Published Issue : 2011 Vol. 6 Number 1

2011 Vol. 6 Number 1