Studies were conducted in Cameroon in the 1990s to evaluate the development of populations of Aphis gossypii Glover on different types of host-plant belonging to the Malvaceae family. Several host-plant characteristics may affect aphid infestation. Firstly, the influence of several varietal morphological characteristics is interesting. This is the case of the okra leaf character as leaf areas are soon saturated in case of aphid puilulation. However, this morphological character implies changes to certain components of the crop management sequence. Plant chemical composition is another interesting pathway for the control of A. gossypii. The levels of certain components such as amino adds and sugars may partially determine the development potential of A. gossypii. These varietal control methods can be envisaged in integrated control programmes and their study deserves to be continued and completed.