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2022 Partial Renovation - GCI Blue Heat

25K views 192 replies 22 participants last post by  mucknine  
#1 ·
So... my lawn is jacked. I'd had a pretty good run going but something I did last year has bitten me in the *** this year and I'm not cool with it. I'm not 100% sure, but my theory is that when I levelled with a mixture of sand and topsoil, the topsoil was contaminated and introduced a whole bunch of unwanted grasses to the lawn. I now have a weak stand of KBG and a mixture of all sorts of clumping (fescues?).

As such, the dude will does not abide and now I'm planning a partial reno of the worst parts, combined with an overseed of the rest to try and keep some level of uniformity. I'm hesitant to reno the whole thing as I think it will be a bit ambitious and too stressful given the shape of my yard. Corner lots with sidewalks are a real b*tch.

Pics below - red lines indicate the parts that will be fully renovated, the rest will be overseeded. Renovated areas coincide with certain irrigation zones.

This post to document the disappointing start to this year.

First, due to the spring we had, everything was VERY slow to green up, except really the clumping grasses. Even now, some areas the KBG is still lagging, although seems to have enough energy to produce a bunch of seed heads.

So far this year I've fertilized, done an app of prodiamine mid-April (4 month rate) and aerated (yes, probably nullified my preemergent barrier but by this time I'd already decided to do the renovation and overseed in the fall.

Anyway, I've purchased GCI Turf Blue Heat as it was difficult settling on a seed and this was available and thought it would be fun to try out. More to come.

This because it's the main yard and the worst of the invaded areas.


This because it's small and easy.


Overseed only.


Reno inside the sidewalk.


Inside the sidewalk.


Inside the sidewalk up to the fence line.


Overseed only.


Same.


Same


Getting nuked.


Nuked.


Nuked.


Nuked.


Nuked.
 
#3 ·
The plan:

Targeting mid August for seed down. Looking at annual average soil temps though I'm wondering if this might be a bit early.


Assuming mid-August seed down:

End of May - Order Seeds (DONE) - went with GCI Blue Heat, a blend of Midnight, Everest, NuGlade KBGs
End of June - Glypho the reno areas.
- fallowing -
Mid July
- Scalp, scarify and level with topsoil (possible a sandy loam) depending on what I can find (open to suggestions here)
- Top dress areas to be overseeded
- 2nd round of Glypho
- fallowing -
- Irrigation audit / adjustments as needed
- source Peat moss
Mid August
- Rake (approx 1 week prior to seed down)
- 3rd round Glypho (2 days prior to seed down)
- Rake (1 day prior)
- Seed down (seed rates as recommended for reno vs overseed)
- Roll
- Spread peat moss with Landzie spreader
- Spray Tenacity
Next 18 days
- Monitor and watering

Post germination plan to follow as per the Renovation Guide
 
#5 ·
mucknine said:
Targeting mid August for seed down. Looking at annual average soil temps though I'm wondering if this might be a bit early.
For an all-KBG reno in your area I'd say mid-August is perfect. I'm 200 miles south of you and have had seed down dates of Aug 14 and 15 I believe for my fall renos. It gives you some wiggle room to seed bare areas/washout areas and you remove some of the risk of an early frost damaging the new grass. You just have to be vigilant on daytime watering, but it seems like you have a solid plan in place.
 
#6 ·
zeus201 said:
Perhaps skip bringing outside soil in again. Level with straight sand, or core aerate heavily and use the cores as leveling material.
This was actually my original plan, but I worried about the challenge of keeping seed moist in straight sand. Problem on using the aerating cores is that my soil is very clay based, so they harden up quite a bit.
 
#18 ·
The Diquat will make the lawn crisp in 3 days. Straight gly usually takes 7-10 days before the lawn is fully brown.

I would try and buy straight glyphosate. Water the area the same as you would if you were germinating seeds (3-5 times a day) and see if you can green back up any areas that are just burned. Then apply the gly to the lawn.

If you don't think you have time to ship from the states you can get straight pre mixed glyphosate from canadian tire or home depot. I don't believe it's sold with diquat any more.
 
#19 ·
It's not to say that the glyphosate won't work to some extent, but usually the diquat burns the plant tissue before the glyphosate translocates. I'm sure there are people that have had complete success with that product, but it's not necessarily "by the book". Start watering every day to see what you can get growing.
 
#24 ·
More background around diquat and why not use it.

https://www.totallandscapecare.com/design-build/grounds-maintenance/article/15031290/chemical-care-taking-diquat-out-of-the-mix

Also, check the label for seeding interval after using diquat. I think it is 4weeks.
 
#25 ·
g-man said:
More background around diquat and why not use it.

https://www.totallandscapecare.com/design-build/grounds-maintenance/article/15031290/chemical-care-taking-diquat-out-of-the-mix

Also, check the label for seeding interval after using diquat. I think it is 4weeks.
Also, I keep hearing talk about risks to applicators from Diquat, specifically from the guys on the Grassfactor podcast. There doesn't seem to be much online about it, other than brief info referencing one or two studies that diquat may have similar, though less potent effects as Paraquat on people.
 
#26 ·
g-man said:
More background around diquat and why not use it.

https://www.totallandscapecare.com/design-build/grounds-maintenance/article/15031290/chemical-care-taking-diquat-out-of-the-mix

Also, check the label for seeding interval after using diquat. I think it is 4weeks.
Thanks @g-man. According to the label, it's safe to plant grass seed 3 days after application.

On the study, it's interesting and they measure uptake and translocation of Gly which would obviously correlate to effectiveness but they don't actually measure/report on effectiveness. I suppose this is me hanging on to hope that I'll still get a deep kill. In any case, I'll fallow my a$$ offf and do app 2 and 3 with Gly41 and hope for the best.