| whitefly bemisia tabaci (homoptera: aleyrodidae) infestation on cassava genotypes grown at different ecozones in nigeria. | large-scale screening of cassava, manihot esculenta crantz, genotypes for resistance to infestation by whitefly bemisia tabaci gennadius, the vector of cassava mosaic geminiviruses, is limited. a range of new cassava elite clones were therefore assessed for the whitefly infestation in the 1999/2000 and 2000/2001 cropping seasons in experimental fields of international institute of tropical agriculture, ibadan, nigeria. on each scoring day, between 0600 and 0800 hours when the whiteflies were rel ... | 2005 | 15889755 |