author(s)
NP Deligeorgidis, PN Deligeorgidis, G Sidiropoulos and CG Ipsilandis

abstract
The purpose of the present study was to explore combined chemical control of A. orana in peach trees orchards in Imathia, Greece. Recordings of generations during season have been performed and total peach production was measured in treated and untreated part of orchard. Eight traps were placed for each year and orchard. Each trap was checked every 15 days and the pheromone was updated monthly until the end of August. Subsequently, 3 treatments were applied to the experimental orchard, with the insecticides Delegate, Lamdex and Runner, to control the insect populations. The three different insecticides used in this study managed to control A. orana below economic damage levels, without the development of considerable resistance of the insects. Treated orchards yielded better than untreated by almost 30%. In 2018 was better control of the insect and populations were decreased in treated orchards by 65% approximately, in comparison to 54% in 2017, indicating continuous efficiency of insecticides.