Experiences in managing invasive alien insect species in agro-ecosystems

摘要

Malaysian encounters with invasive alien species (IAS) are described. There is still little information on how IAS have impacted on the endemic biodiversity and altered the structure and functions of the inherent ecosystems. There has also been no comprehensive or coordinated monitoring to properly document or catalogue introduced IAS. There are four options or steps for dealing with alien species: (1) prevention, (2) early detection, (3) eradication and (4) control. Details on how Malaysia has put these steps into practice are provided. Studies on the ecology and management of three recent invasive species of horticultural crops - beet army worm, leafminers and the white/lies' complex are elaborated. Suggestions are given for further strengthening of national capacity to deal with invasive pest problems in the future.