https://commons.ru.ac.za/vital/access/manager/Index en-us 5 Biological control of Pereskia aculeata Miller (Cactaceae) https://commons.ru.ac.za/vital/access/manager/Repository/vital:5825 Wed 12 May 2021 16:03:06 SAST ]]> The role of the mite Orthogalumna terebrantis in the biological control programme for water hyacinth, Eichhornia crassipes, in South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:5762 Wed 12 May 2021 16:00:09 SAST ]]>