Turpentine oil is obtained from Pinus longifolia. It is used in rubber, paint and varnish industries. Melia azedarach belongs to family Meliaceae. It is used medicinally, the juice of the leaves is used as an anthelmentic and the seeds in rheumatism. Eucalyptus oil an effective remedy against cough and colds is derived by distilling leaves of Eucalyptus spp.