How do ants protect trees from intruding plants?

Ants protect trees from intruding plants primarily through a mutualistic relationship. Some ant species defend trees by aggressively removing competing vegetation that encroaches on their territory. Additionally, ants may also prune or disrupt the growth of invasive plants, ensuring that their host trees receive adequate sunlight and resources. In return, the trees often provide nectar or shelter, creating a beneficial partnership for both parties.