In September 2013, the European Commission published a proposal for a Regulation on the prevention and management of the introduction and spread of invasive alien species. The proposal aims to address the threat of invasive alien species comprehensively, minimising and mitigating their impacts on...

Invasive species are mostly nonnative species introduced accidentally or intentionally by humans in natural or established habitat where they threat the environment, economy and/or health. Several thousands of the alien species have become established in different parts of the world over the past...

This paper reviews the impacts of weeds that threaten either pasture production or native grassland biodiversity values. It then reviews weed management strategies in grasslands to control weeds. We describe differing perceptions of grassland weeds and the associated societal values underlying...

Parthenium weed (Parthenium hysterophorus L.) is an invasive alien species whose mode of introduction is uncertain, although it was first recorded in Ethiopia in 1968. Since then it has been colonizing disturbed sites very aggressively, impacting pastures, croplands and forests by outcompeting...

Chromolaena odorata (L.) King and Robinson (Asteraceae), a shrub native to tropical America, was first introduced into West Africa (Nigeria) in 1937, and later became invasive. The weed has since spread to other countries in the West African subregion, threatening agriculture, biodiversity and...

Biological invasion is now a major threat to global biodiversity. As one of the worst invasive weeds in the world, research on various aspects of Mikania micrantha H.B.K. is increasing over the years. The plant was introduced in India after the Second World War and its profuse growth in Kerala and...

The introduction and establishment of non-native species has been recognized as one of the most significant threats to the maintenance of native biodiversity in most taxa, including angiosperms. The Siberian peashrub, Caragana arborescens Lam. (Fabaceae), is native to Eurasia, but was introduced to ...