In Egypt, Macrotomapalmata F. (Coleoptera: Cerambycidae) is a serious polyphagous pest attacking fruit, wood and ornamental trees. Apricot orchards, however, are liable to severe infestation especially in dense plantations. Hosts and degree of infestation in Matrouh, Alexandria, Gharbia, Dakhalia, Sharkia, Ismailia, Suez, Qalubia, Menofia, Giza, Fayoum and North Sinai were recorded. The seasonal fluctuation in population was monitored on apricot trees at Alexandria and Giza governorates throughout the 3 successive years (1987–1989). M. palmata started to emerge during June and continued until October. At both the experimental sites, M. palmata development was influenced by temperature and relative humidity.
