Growing a thick turf can help reduce the amount of "weeds" that grow in that turf, provided the height of that turf grass is also high enough. However, that requires a good healthy soil for those turf grasses to grow in and adequate soil moisture.

This post was edited by kimmsr on Sat, Aug 16, 14 at 7:13

Thanks Kimmsr, I have been following all the basics here on this site. Keeping height at 3.5" watering 1" a week in the hottest months, organic fertilizer once a month. The lawn looks incredible while everyone else's around me have gone dormant.
I think my biggest problem is that my PH is 7.8 and It doesn't seem to come down no matter how much sulphur I put down.
I get that keeping the lawn thick and healthy and tall prevents weed germination but will it also choke out existing weeds?

Thanks again.

Some "weeds" might be pushed out by a good thick lawn but others that are already growing will not easily give up and will need to be removed or ignored. Keep in mind too that what we call "weeds" are wild flowers that may be of great benefit for the pollinators we have. There is some discussion that these wild flowers have stuff in the pollen that helps protect the bees from various pests and diseases as observed where they have unlimited access to these "weeds".
A soil pH of 7.8 is getting fairly high (I'd not be too concerned about 7.2) and is usually only achieved with applications of too much lime, although Saskatchewan and B.C. may have soils with pH's that high. How did you arrive at that soil pH?

I had a soil test from Midwest Labs.

I tried to upload a screen shot of my soil test but I see it did not attach for some reason. Can anyone help?

I have been successful in posting material I have in my computer to this forum simply by copying and pasting.

Ok, I hope this worksâ¦
/Users/tombennett/Pictures/Tom's IPhone/Camera Roll/IMG_1138.PNG