https://www.thespruce.com/what-is-allelopathy-1402504#:~:text=Allelopathy%20is%20a%20survival%20mechanism,fungi%2C%20can%20also%20be%20allelopathic.

"Allelopathy is a survival mechanism that allows certain plants to compete with and often destroy nearby plants by inhibiting seed sprouting, root development, or nutrient uptake.1 Other organisms, such as bacteria, viruses, and fungi, can also be allelopathic."

"Invasive weeds can use allelopathy to choke out the competition."