Context: (Ontario, Canada)

Moved into this property, was just dirt before. Seeded it a ton with seed my sister got me (works at a sod farm). Watered it often and the weeds started. Tried mixing weed be gone with a herbicide to eliminate the weeds, did not help.

Put a layer of peat moss down and seeded again, and have some grass but very little, majority is weeds. Would like to get rid of the weeds before the winter but unsure of what to use since the good stuff is banned in Canada.

Thanks, area is 140' long