FAQ – Could the Himalayan balsam rust harm native flora?

The rust has undergone extensive safety testing to prove that it is a specialist to Himalayan balsam. Importantly, we have tested the rust against two distinct population of Impatiens noli-tangere, a closely related native Impatiens species in the UK and this species is immune from the rust.

The scientific dossier, which will include all of the research conducted on the rust since the project began in 2006, will undergo a full review by UK regulators (FERA). It is anticipated that the research will undergo a further level of peer review by independent scientific experts.