Castel-Branco, C.F. 1959 Lutte biologique contre Aspidiotus destructor Sign. a l'ile Principe (Afrique-Occidentale Portugaise). [Biological control against Aspidiotus destructor Sign. on the Island of Principe (Portuguese West Africa)].. Revue de Pathologie Végétale et d'Entomologie Agricole de France 37: 235-239.

Notes: This paper shows the successful acclimatisation of coccinellids (Cryptognatha nadiceps Mhll. etc.) from Trinidad for control of a serious infestation of the cocotree in the Principe Isle (Portuguese West Africa) by Aspidiotus destructor Sign.