The answer to 'why is my tree invasive plants' is that your tree may be harboring or spreading invasive plant species. Invasive plants can grow rapidly, spread aggressively, and outcompete native vegetation. Common signs of an invasive plant problem include the presence of aggressive weeds, fast-growing vines or shrubs, and a lack of diversity in your landscape.
Invasive plants can be introduced through contaminated soil, mulch, or equipment, or they may spread from neighboring properties. Addressing an invasive plant issue requires a multi-pronged approach of identification, removal, and prevention. For smaller infestations, you may be able to handle the problem yourself through manual removal, but for larger or more established invasive plants, it's best to consult a professional landscaper or arborist who can provide the appropriate treatment and management strategies.