ECOLOGICAL STUDIES ON THE MEDFLY, CERATITIS CAPITATA IN APRICOT ORCHARDS IN RELATION TO NEIGHBOURING CITRUS ORCHARDS | ||||
| Egyptian Journal of Agricultural Research | ||||
| Article 7, Volume 74, Issue 1, March 1996, Page 61-70 PDF (2.21 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejar.1997.427319 | ||||
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| Authors | ||||
| MOHAMED H. SAAFAN; ANTWAN W. TADROS | ||||
| Plant Protection Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt | ||||
| Abstract | ||||
| The population fluctuation of the Mediterranean fruit fly, Ceratitis capitata (Wied.) (Diptera : Tephritidae) was studied in apricot orchards in relation to the neighbouring summer citrus orchards for three successive seasons (1992 , 1993 and 1994) at Kalubia Governorate. In the meantime, the rate of larval infestation in apricot fruits was estimated in apricot orchards compared with those in adjacent citrus ones. Data of trap catches indicated that medfly population was higher in summer citrus orchards than in apricot orchards through the period from early March to mid-May / early June; then adults migrate to apricot orchards giving rise to high population until late July. Medfly male catches per trap per day "CTD" ranged 0.008 - 2.31,0.02 - 3.84 and 0.03-5.64 males in summer citurs orchards, while it ranged 0.0-5.24, 0.0-6.76 and 0.0 - 12.32 in apricot orchards during the three seasons respectively. The percentages of larval infestation in apricot orchards were higher in those near to citrus orchards than in far away ones during the three successive seasons. Mean percentages of medfly infestation in apricot fruits ranged 2.13 - 19_06, 1.64 - 27.55 and 12.63-77.38% in apricot orchards neighbouring to citrus orchards compared with 0.58 - 8.17, 0.87 - 11.21 and 0.79 - 19.73% in apricot orchards far away from citrus orchards during the three successive seasons, respectively. | ||||
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