Hi Guys, Just wanted to share a trick I have used that has worked for me.
If I have an area of exclusive weeds I will put down one sheet of ordinary newspaper and a little growing medium on top of the paper.
Then I put my seed and a little dead grass, straw, whatever.
If you get your timing right your seed will fill in the area before the weeds can push through the paper. Paper stays moist a little longer than general soil also.
Here it is organics or nothing as chemicals are prohibited. Have had decent success with this method. Joined this site after years of lurking just to post this. All you Canadians better try it or I will be disappointed.