Introduction of weedy spurge leaf defoliators and their parasitoids in East Azarbijan province rangelands

Document Type : Research Paper

Authors

Abstract

Many species of spurges (Euphorbia spp.) are scattered in the pastures of East Azarbaijan province. The genus Euphorbia L. (Euphorbiaceae) typically have poisonous white sap in all plant parts. In this study defoliators of two common species of spurge including Euphorbia seguieriana Neck and E. heteradenia Jaub & Spach were collected and identified in Tikmedash and Horand rangelands, respectively. Two species of sphengid moth’s including Hyles lineata (Fabricius) and Hyles euphorbiae L. in Horand and the leafy spurge defoliator moth, Simyra dentinosa Freyerin in Tikmedash were detected as potential biological control agents of spurge. Study on natural enemies in laboratory rearing larvae of moths indicated that the larvae and pupae parasitized by three species of parasitoids as follows:
1- Cotesia vanessae Reinhard (Hym., Braconidae)
2- Hyposoter didymator (Thunberg) (Hym., Ichneumonidae)
3- Masicera sphingivora (Rohineau-Desvoidy) (Dip., Tachinidae)
The larvae of S. dentinosa were parasitized by the first two species of parasitoids and pupae of H. lineata and H. euphorbiae were parasitized by the tachinid fly.
 

Keywords

References

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History

  • Receive Date: 06 June 2011
  • Revise Date: 21 May 2016
  • Accept Date: 13 September 2011

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