Defra is funding CABI to investigate the biological control of invasive, non-native aquatic and riverside weeds. This could help protect habitats where chemical and mechanical control are impractical or prohibitively expensive; and to help meet requirements of the EU Water Framework Directive.
Defra are seeking your views and supporting evidence on the Pest Risk Assessment and proposal to lift the quarantine restrictions of Puccinia komarovii var. glandulifera. Defra are also seeking your views on the utilisation of this rust fungus (after rigorous safety testing) for the biocontrol of the highly invasive non-native plant, Himalayan balsam, (Impatiens glandulifera).
A new paper discusses biological control (using natural enemies) of plants that have escaped from gardens and are invading wild habitats in UK. These include Japanese knotweed, Himalayan balsam, Australian swamp stonecrop, floating pennywort, giant hogweed, water fern, rhododendron and buddleja.