Katagira Francisca Lubega F Ecological factors that determine the performance of neochetina weev ils on water hyacinth in Lake Vctoria basin river systems in Tanzania / Francisca F. Lubega Katagira - Kampala, 2007 - 131 p. : ill., col. ; 30 cm. Unpublished thesis (Ph.D., Agric. ) - Makerere University, 2007 Includes bibliographical references (p.113 - 128) Subjects--Topical Terms: Water hyacinth Beetles Dewey Class. No.: 584.72