These papers present work on water hyacinth worldwide and include new research initiatives, overviews of water-hyacinth implementation programmes in various countries and a proposal for a mechanism to facilitate the dissemination of information on water hyacinth through a clearing house.

Biological control – utilizing a population of natural enemies to seasonally or permanently suppress pests – is not a new concept. The cottony cushion scale, which nearly destroyed the citrus industry of California, was controlled by an introduced predatory insect in the 1880s. Accelerated invasions by insects and spread of weedy non-native plants in the last century have increased the need for the use of biological control. Use of carefully chosen natural enemies has become a major tool for the protection of natural ecosystems, biodiversity and agricultural and urban environments. This book offers a multifaceted yet integrated discussion on two major applications of biological control: permanent control of invasive insects and plants at the landscape level and temporary suppression of both native and exotic pests in farms, tree plantations, and greenhouses. Written by leading international experts in the field, the text discusses control of invasive species and the role of natural enemies in pest management. This book is essential reading for courses on Invasive Species, Pest Management, and Crop Protection. It is an invaluable reference book for biocontrol professionals, restorationists, agriculturalists, and wildlife biologists. Further information and resources can be found on the Editor’s own website at: www.invasiveforestinsectandweedbiocontrol.info/index.htm

The waterhyacinth weevil 'Neochetina eichhorniae Warner' was introduced into quarantine in Puerto Rico in anticipation of future release of the insect to aid in the control of its host aquatic plant 'Eichhornia crassipes (Mart.) Solms'. The insect is being tested for host specificity by subjecting many native plant species to it; these species include many which are of particular ecological or economic significance in Puerto Rico. Although the results are preliminary, this insect species appears to be host specific to waterhyacinth as it proved to be in the continental United States. (Author).