Adu Ampomah, Y., Adomako, B., Owusu, G.K., Ollennu, L.A.A., & Bekele, F. 1999 Breeding for resistance to the cocoa swollen shoot virus in Ghana.. Proceedings of the International Workshop on the Contribution of Disease Resistance to Cocoa Variety Improvement 173-179.

Notes: [Conference held in Salvador, Bahia, Brazil, 24-26 November, 1996.] Cacao swollen shoot virus (CSSV) is caused by a badnavirus transmitted by mealybug (Planococcoides njalensis) and occurs in all the main cocoa [Theobroma cacao]-growing areas of West Africa. Progress on breeding for CSSV resistance in Ghana is discussed by referring to: variation in mealybug (Planococcoides njalensis) vectors; variation in CSSV isolates; resistance breeding, including varieties in use in 1969, development of Inter-Amazon hybrids (1969-81), methods of screening for resistance (manual inoculation of seeds and mealybug inoculation), searching for pollen parents to replace Amelonado, searching for female parents, and mutation breeding; mild strain cross protection; and identification of markers linked to loci controlling resistance to CSSV.