Kreiter, P., Audant, P., & Germain, J.-F. 2006 [The scale Insect in Ornamental Arboriculture] Les Cochenilles en Arboriculture Ornementale. Association Fran├žaise de Protection des Plantes Oct. 2006: 140-145

Notes: Scale insects are more present on trees in urban environments. Several reasons are pointed out: bad managements of irrigation, fertilization, plant health treatments, but also severe cuttings or bad plants associations. A list of scale insects of economic importance in ornamental arboriculture is purposed. Some alternative means of pest management are recommended, particularly biological ones.