Open Access

Effectiveness of Sterile Insect Technique for Medfly (Ceratitis capitata, Wiedemann, 1824) Control in Citrus Orchards of Moulouya Perimeter North East of Morocco

Agriculture

Abstract

The Sterile Insect Technique (SIT) is an effective pest control method developed worldwide against many species of Fruit Flies. It involves the release of male insects sterilized, at pupae instar, by exposure to ionizing radiation.  The Area-wide control of medfly (Ceratitis capitata), with SIT based on sterile males release combined to other control techniques, was implemented since 2017 as a pilot area in Moulouya Perimeter in North-eastern Morocco. The main objective of this study is to evaluate the effectiveness of this tool in controlling Medfly and estimate sterile male population densities from data collected from trap catches after the release of a pre-determined number of sterile males in five Citrus orchards (0, 500, 1000 and 3000 sterile males per hectare) and the calculation of FTD (fly/trap/day) of sterile and wild males. The result showed that the percentage of recaptured males and FTD Sterile indices were related to release density by power function regression, while the sterile to wild ratio and release density were linear regression-adjusted. The finding confirmed the effectiveness of release in reducing the fly population in the TIS area by reducing the rate of citrus infestation in field and export shipments.

 

Keywords

How to Cite

Jamal BEN YAZID, Z. CHAFIK, I. BIBI, & E. KHARMACH. (2020). Effectiveness of Sterile Insect Technique for Medfly (Ceratitis capitata, Wiedemann, 1824) Control in Citrus Orchards of Moulouya Perimeter North East of Morocco. ISPEC Journal of Agricultural Sciences, 4(3), 405–421. https://doi.org/10.46291/ISPECJASvol4iss3pp405-421

References

📄 APHIS (Animal and Plant Inspection Service). 2016. APHIS rescinds the federal order prohibiting certain citrus fruits from Morocco due to Mediterranean fruit fly (Ceratitis capitata). Available from: https://www.aphis.usda.gov/import_export/plants/plant_imports/federal_order/downloads/2016/2016-64.pdf
📄 APHIS, 2016. APHIS prohibits the importation of certain citrus fruits from Morocco due to Mediterranean fruit fly (Ceratitis capitata). https://www.aphis.usda.gov/import_export/plants/plant_imports/federal_order/downloads/2016/2016-10.pdf
📄 Barclay, H.J. 2005. Mathematical models for the use of sterile insects, pp. 147-174. In V. A. Dyck, J. Hendrichs, and A.S. Robinson (eds.), Sterile insect techinique, principles and practice in area-wide integrated. Pest Management, IAEA, Springer, The Netherlands
📄 Bjeliš, M. 2007. Feasibility study of medfly (Ceratitis capitata Wied) control by sterile insect technique in Neretva river valley. Lectures and papers presented at the 8th Slovenian conference on plant protection, Radenci, March 6-7. 193-198.
📄 Bjeliš, M., Radunić, D., Bulić, P. 2013. Pre‐and post‐release quality of sterile Ceratitis capitata males released by an improved automated ground release machine. Journal of Applied Entomology, 137:154-162.