The regional council is asking farmers to keep an eye out for Chilean Needle Grass, a noxious grass which can bury into the eyes, skin and muscle of livestock.
The plant is easiest to identify during spring and early summer, due to its distinctive purple seeds, HBRC's senior plant pest advisor Alice McNatty said.
"Early identification and control is important to contain this pest plant which can quickly invade productive land," McNatty said.
The grass is easily spread on contaminated machinery, vehicles, feed and stock.
McNatty said the new biosecurity measures, aimed at stopping the spread of Mycoplasma Bovis, may help with the spread of CHG as well.