Bioecology of Codling Moth Cydia pomonella (Lepidoptera: Tortricidae) and Study of the Associated Entomofauna on Anna Variety in Tadmaitregion (Tizi-Ouzou, Algeria)

Abstract

Cydia pomonellais a Lepidoptera of family Tortricidae, Polyvoltin dependent on its host plant apple tree Malus domestica. This insect presents two to three generations per year depending on the climatic conditions of the environment, the characteristics of the agro ecosystem as well as the varietal characteristics of the host plants. This study aims to evaluate the population dynamics of codling moth C. pomonella by using specific sex pheromone traps and the existence of possible predators of this insect by the realization of entomo fauna inventory to highlight an appropriate control strategy within a parcel of apple tree of Anna variety in Tadmait region of Tizi-Ouzou. The results reveal the existence of 3 flight periods, which indicates 3 main generations per year. Insect inventory realized by using three sampling methods: the sweep net, Barber traps and colored traps allowed us to capture 42 species divided into 29 families, belonging to 7 orders. The centesimal frequency values applied to the listed insect species vary from one type of trapping to another; each sampling method is relative to a representative order group. Insect diets are extremely diverse, because of the structures and functioning of the mouthparts, of the structural and functional division of the digestive tract. We were able to distinguish six large sets from the 42 insect species selected.