@MISC {HANNA:2009a, title = {Citrus infestations by tephritid fruit flies in sub-Saharan Africa: first results from Benin show substantial infestations largely by the Sri Lanka fruit fly Bactrocera invadens}, author = {Hanna, R. and Gnanvossou, D. }, year = {2009}, howpublished = {Information Letter no.2, 2009. p3: Fighting fruit flies regionally in sub-Saharan Africa}, }