Anegative effect that conograss could have on other organizms in its habitat

Cogon grass is an invasive grass that is considered a pest in 73 countries and a weed of 35 crops worldwide. As a perennial grass weed, it is an inferior forage grass that negatively impacts biodiversity. It creates a very competitive environment for commercially-important species and displaces native animal and plant species. Cogon grass can also alter fire regimes.  

Ihaven't done that yet, so no idea,but this is not the right place to ask