Annual evaluation of phoracantha semipunctata fabricius,1775 (Coleoptera: Cerambycidae) in the North Eastern Morocco

The phoracantha semipunctata (cerambycidae) is a wood-boring pest of the most formidable of eucalyptus stands. it is considered as a very invasive species. its proliferation has increased since the last decade. nowadays it is an ecological disaster longhorn. it causes dramatic damage in many parts of morocco. this problem requires special care to ensure the preservation of eucalyptus plantations. the objective of our work is to conduct a study on the annual evaluation of imagos phoracantha semipunctata in north-eastern morocco for control purposes. after an overview on eucalyptus gomphocephala,the characteristics of the stations used in this study as well as the sampling methods and statistics methods are presented. this study was conducted in two different regions,saidia's coastal area in 2013 and the green curtain taourirt-oujda in 2014 by trapping in natural conditions supplemented by monitoring emergence of semi-natural environment imagos using hatchers prepared at the laboratory. the experiments conducted in the field and inside the laboratory helped us to determine the longhorn development cycle which is a monovoltine species in saïdia and bivoltine in green curtain taourirt-oujda. © 2017,university of mohammed premier oujda morocco.