Development of attractants and bait stations for their integration into mass trapping against fruit fly (Ceratitis capitata Wied.) and olive fly (Bactrocera oleae Gmel.)

In the framework of JOINT FAO/IAEA under a Co-ordinated Research Program a number of countries have carried out experiments specially in the application of the various trapping methodologies to survey fruit flies of economic importance. A common standard protocol was established by scientists of all participating countries in periodically meetings. This paper presents the results of the last experiments carried out in Spain during the last year (2004) of the forth and last phase of the Project "Development of Improved Attractants and their Integration into Fruit Fly SIT Management Programmes". The experiments with medfly were aimed at answering three questions: could Deltamethrin substitute DDVP as killing agent in dry traps? Is the new concept of "bait station" a good tool to control fruit flies? Is easy trap so effective as it worked last year? The experiments with olive fly Bactrocera oleae were directed to see the response of the fly to the red colour of the traps combined with Torula yeast as bait.. Deltamethrin acted like a very good killing agent showing no repellent effect as DDVP does. A modified easy trap (both halves of yellow colour) baited with AA and TMA coating with sugar and Methomil killed as many flies as the best treatment. The yellow sphere was tested only in the cold period with very good results to. Easy trap baited with ammonium acetate and Trimethylamine using Deltamethrin as killing agent was the best trap essayed. The solution of Nulure 9% + Borax 3%, once again, have demonstrated to be the best attractant for olive fly (Bactrocera oleae). "Easy trap" was the best trap tested.