Taxonomical study was carried out on Family Buprestidae at Al-Jabal Al-Akhder district (Libya) from July 2007 to October 2009. Ten species of the family were collected and classified into five subfamilies. Three species are belonging to the genus Julodis of Subfamily Julodinae, one of these species has three subspecies. Two species of subfamily Polycestinae both are belonging to the genus Acmaeodera. Each of the subfamilies Chrysochorinae, Buprestinae and Agrilinae are represented by only one genus with only one species. .Keys to the studied subfamilies, genera of each subfamily and to the species of each genus are constructed. All the studied species are described in detail, with demonstrated photos and the taxonomical characters are illustrated. Anthaxia kneuckeri and Capnodis exice are first recorded in Libya in the present study.
.2pt'>Experiment (2): The main objective was to study the effect of time of cutting preparation dates (February, May, August and November) of three olive cultivars (Coratina, Kalamata and Manzanillo) as well as interaction effect of their combinations on rooting ability parameters. Cuttings of Manzanillo cv. had good rooting characters 66.25 & 66.14 followed by Coratina cv. 62.39 & 59.91 then Kalamata cv. 12.52 & 10.81 during 2008 & 2009 seasons. August and November were considered the best date of cutting preparation under the same conditions of this study. Cuttings of Manzanillo prepared at August gave the highest rooting percent .The highest survival percentage after two months from transplanting was recorded from cuttings prepared and planted at August and November in both studied seasons.
As a conclusion we can say that rooting of some olive cuttings under shaded Polyethylene tunnel consider the best method compared with the other methods because it do not need a very expensive equipments.