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The codling moth, Cydia pomonella (Linnaeus) (Lepidoptera: Tortricidae), is the major pest of apple and walnuts cultivation in many parts of the world. The species has achieved a nearly global distribution due to its successful adaptation to different environmental conditions. The aim of the present was the study of the flight capacity male of codling moth populations. The flight capacity was studied using pheromone baited delta traps (MRR) in the area of New Amiso Drama, in the year 2021. The general part of the thesis includes a literature review, firstly of the morphology, biology of walnut and then of the bio-ecology of the codling moth, Cydia pomonella. Methods of insect management and some data on insect resistance to insecticides are reported. Three delta traps were set. One trap was the witness. In the other two were placed pheromone I. P. S Wax Plug - Small WP (MMR). Ninety-four (94) walnut trees are cultivate in an area of 0, 6 ha. The population was monitored for five months, from 20 April to 20 September.