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Sadraoui-Ajmi Insaf,Benali Nejib,Soltani Abir,Chaib Samira,Limem Essia,Jallouli Slim,Boushih Emna,Fajraoui Abdallah,Mediouni-Ben Jemâa Jouda 한국응용곤충학회 2022 Journal of Asia-Pacific Entomology Vol.25 No.1
In Tunisia, oasis ecosystem is characterized by fragility due to the abusive application of insecticides and fer tilizers. Moreover, in oasis Ceratitis capitata is a major pest. Its control relied on synthetic pesticides. This work aims to assess the efficiency of the two formulations based on the combination of DAP and Eucalyptus essential oils. X-Ray Diffraction and Brunauer-Emmett-Teller surface area were used to characterize DAP fertilizer. GC–MS analysis were performed for analyze oils composition and adsorption of oil compounds. Kinetics adsorption/ desorption was determined by measuring the mass of solid samples over time. Repellent/attractant and contact toxicity tests of Eucalyptus cinerea and E. maidenii oils and their formulations were evaluated against Medfly adults. GC–MS analysis indicated that 1,8-cineole was the dominant major common compound (E. cinerea: 74.58%, E. maidenii 66.70%). Moreover, the adsorption efficacy depends on the abundance of each compound in crude essential oils and the polarity of terpenic components. Indeed, percentage of 1,8-cineole adsorption in the formulation was 76.15%for E. cinerea and 65.24% for E. maidenii. Results indicated the attractant potential of both essential oils (class III) and that DAP/essential oils formulations accomplished better attractant performance (class IV). Besides, formulations were toxic towards C. capitata adults (80% and 100% mortality for E. cinerea and E. maidenii). Results pointed out that the commercial lure Ceratrap®, traps baited with DAP/E. maidenii and DAP/E. cinerea formulations were attractant against C. capitata adults under field conditions. This work supports the use of essential oils and fertilizers-based formulations as an innovative tool for the management of Medfly.