Bénassy, C., Bianchi, H., & Milaire, H.G. 1964 Expérimentation en matière de lutte intégrée dans deux vergers français. [Research on integrated control in two French orchards.]. Entomophaga 9: 271-280.

Notes: Two parasites were released to help control Quadraspidiotus perniciosus and Eriosoma lanigerum, along with the chemical control previously used.