Researchers say natural enemy could help control South African brambles

A research team from the Agricultural Research Council and Rhodes University's Centre for Biological Control says biological control of invasive brambles is feasible in South Africa. They describe their study in an article on The Conversation.
The team found that the dominant invader, once treated as one species, is three plant types. The upright form dominated 42 of 69 accessible grassland sites, and the sprawling forms appeared at 26 sites. The authors say chemical and mechanical control fail on brambles. This is the authors' own account of their study, and no natural enemy has yet been released.