APHID SPECIES AND NATURAL ENEMIES ON WHEAT IN MIDDLE OF IRAQ | ||
| IRAQ JOURNAL OF AGRICULTURE | ||
| Article 1, Volume 19, Issue 6, October 2014, Pages 0-0 | ||
| Authors | ||
| H. M. Hussein; N. N. Hama; K. T. AL-Neami | ||
| Abstract | ||
| A general survey on aphid species was conducted at wheat fields in the governorate of Babylon, Wasit, Najef, Dewanyia and Baghdad during 2011-2012 seasons. Results have been indicated the presence of fours species namely Schizaphis graminum (Rondani), Rhopalosiphum padi (L.), R. maids Fitch and Sitobion avenae (Fab.). The first two species were the most dominate species on wheat fields. Gradual increase in aphid population was observed up to the mid of March then followed by a sharp decrease. Leading to population outbreak which occurred at the end of March. Sharp decline also was observed early April. Consqueaty the population of natural enemies directly affected by aphid's population which increase gradually reached high density at the first week of April. Survey also has included predators and parasitoids species. Three predator's species of Coleoptera, three species of Hemiptera, two of Diptera and one species of Neuroptera were recorded. Farther more six species of the parasitoids Aphidiidae were recorded including two species as hyperparasitoid. | ||
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