Étude de l’impact du déficit hydrique et azoté sur les infestations de Myzus persicae (Sulzer) dans le verger du pêcher

National audience; The objective of this work is to develop an integrated and ecological pest management strategy to assess the impact of water and nitrogen resources on Myzus persicae infestations in the peach orchard. The results of the peach aphid impact study showed a significant effect of water and nitrogen availability on the level of green peach aphid infestation. Indeed, the normal fertilization regime (T1=100%) was found to be much more favorable to a prominent development of the aphidian populations, while the regime deficit of 25% in water and nitrogen by contribution to the normal diet (T2=75%) was able to minimize the infestations of the latter. At the same time, the study of the effect of orientation on the infestation of the aphid showed that orientations North, West and South were more infested than that of East. As for the auxiliaries and the ants, the treatment carried out revealed a significant effect on their evolution.