COMPARATVE STUDY ON THE IMPACT OF FIVE HOST FRUITS ON POPULATION DYNAMICS OF CERATITISCAPITATA WIED.IN NORTH GAZA STRIP. | ||||
| Journal of Plant Protection and Pathology | ||||
| Article 3, Volume 29, Issue 12, December 2004, Page 7495-7509 PDF (4.56 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jppp.2004.240080 | ||||
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| Authors | ||||
| A. S. Saleh,1; Z. Omran2 | ||||
| 1Faculty of Agriculture, AI Azhar University, Gaza | ||||
| 2Plant Protection Department, Ministry of Agriculture, Gaza. | ||||
| Abstract | ||||
| The present field study was carried out to assess the effect of the five host fruits (guava, celementine, Shammoty orange, grapefruit and Valencia orange) as well as the total area on population dynamics of the Mediterranean fruit fly Ceratitis capitata, Wied. The population fluctuation of adult the Medfly by Jackson traps in above host fruits during three seasons (2001-2004) was monitored. The captured males per trap (Jackson) for every ten days was counted and then recalculated per day (CTD) to use it's as a measure of fly abundance. Data showed significant differences in the population of Medfly (CTD) in host fruits groves in three seasons, in season's sequence and within season (dates of inspections). In addition the influence of host fruits species on Medfly population dynamics the (CTD) was observed. The average of three seasons (2001-2004) showed that Shammoty orange (CTD=3.47), quava fruits (CTD=3.0) was the highest effect on CTD'S among the host fruits. Similar results were observed for December (CTD=5.2), November (CTD=4.74), July (CTD=4.44) and August (CTD=4.24), respectively were the highest effect on CTD'S / for all host fruits. Also the interaction effect between host fruits and months on the population fluctuation Medfly was recorded. In all cases of host fruits groves most population peak numbers of Medfly were observed shortly after the period of end maximum host fruit repining and there was a relationship between population dynamics, fruit infestation the Medfly and fruit maturity. The Medfly is available a long a year but it decrease and increase during the season depending on host fruit availability and climatic condition. More than two population peaks were found in a particular every host fruit. One of these peak appeared in fruit repining period and the others were related to the ripen period of neighboring host fruits. The temperature had a clear effect on the daily activity period of the Medfly during summer and autumn seasons. The Highest mean percentage of Medfly infestation was observed in guava (46%-48.5%) during October & November, in grapefruit (28.5%-50%) during January and in Valencia (17.5%-49%) during June. The study suggests that further research is needed to study the seasonal abundance, host susceptibility of Medfly and evaluation new techniques of controlling friendly environment which will help us in planning IPM program for reducing and suppressing this insect in groves. | ||||
| Keywords | ||||
| Host fruits; Population dynamics; Mediterranean fruit fly; Ceratitis capitata Wied. and North Gaza Strip | ||||
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