[Green]

@JerseyGreens I only talked to one groundskeeper briefly. At one of the places, I was getting a "get off my course" vibe from the workers. I think they plant the alligators there to get the non-members.

@Green good observation - the summer is causing all kinds of funky changes to my yard so this would not surprise me. If it's not a weed, I'll see if iron will help.

It looks like the KBG to me. There was a study showing that iron didn't help prevent the problem when used before the yellow became widespread. It did help recovery toward the end, though.

That is really interesting. Never would've guessed that is KBG. Thanks for the tip!

If you look at the in-focus blade that is yellow, it looks like a KBG blade (due to the fold down the middle).

 

[bf7]

@Green I see what you mean now. It does look similar in texture to the darker green blades in the pic.

 

[bf7]

6 oz / 1k of Revolution
3 oz / 1k of Cleary 3336 EG
0.2 oz / 1k of T-Nex PGR
Mowed at 3/4"

 

[bf7]

0.7 oz / 1k of Azoxy
0.7 oz / 1k of PPZ
6 oz / 1k of Air 8
6 oz / 1k of RGS
3 oz / 1k of Humic 12

Survival mode! Slowly been taking on a dormant look. Plenty of moisture in the air and the soil, so I believe it's more fungus than drought. Although there are a few spots with extreme compaction or where builders left rocks a couple of inches under the soil that are dealing with heat stress. The Revolution hasn't been needed this year so far. I think I've only done 2 or 3 deep irrigations.

The 3/4" cut was fun to walk on but started look like crap when July hit. I noticed that longer healthy grass tends to hide the brown diseased blades. When I cut shorter, I could see all the ugly. I let it grow out and raised hoc back to 15/16". That combined with a couple of nights in the 50s and everything began to look better.

 

[Slingblade_847]

Well well, @bf7 ..... yard is looking mighty fine! Your disease pressure looking rather minimal. Seems you are doing the right thing with your apps. Keep it up!!

 

[bf7]

Well well, @bf7 ..... yard is looking mighty fine! Your disease pressure looking rather minimal. Seems you are doing the right thing with your apps. Keep it up!!

Thank you sir! I don't know where I'd be without fungicides this year. Probably be planning another reno. It has been downright tropical here. Rain everyday!

 

[bf7]

0.2 oz / 1k of T-Nex PGR
10 oz / 1k of Microgreene

...BUT then came a pop up storm bringing 1 inch in a half hour. Not sure how much product was actually absorbed.

 

[Slingblade_847]

Well well, @bf7 ..... yard is looking mighty fine! Your disease pressure looking rather minimal. Seems you are doing the right thing with your apps. Keep it up!!

Thank you sir! I don't know where I'd be without fungicides this year. Probably be planning another reno. It has been downright tropical here. Rain everyday!

Same here brother. Summer Patch has reeked HAVOC! No idea the SP was there until too late, and I didn't do any preventative apps. Lesson has been learned the hard way.... I've been contemplating adding in some PRG to the bad spots, as it only effected one side of the house that gets less sun. I don't know....

 

[bf7]

Fungus becoming more apparent in the backyard.

 

[synergy0852]

Looks to be the same thing I was just fighting/still might be. Are you thinking leaf spot or something else?

 

[bf7]

Looks to be the same thing I was just fighting/still might be. Are you thinking leaf spot or something else?

Not sure on the ID. Here is a closeup. The pics in my previous post were taken yesterday. I ran out today, and it looks more widespread.





I did curative rates of Azoxy and propi 9 days ago (as a preventative treatment). I was planning another Clearys app in 5 days or so.

How did you fight yours? Or did it improve on its own with change in weather?

 

[synergy0852]

I sprayed clearys as I already had azoxy down as a preventative about a week before it hit the hardest. I think the cooler weather stopped it as opposed to the fungicide but I'm not really certain. I plan on going out again with azoxy as a foliar spray tonight along with some insecticide and iron... Still debating if I want to put it back under regulation as I let it go hoping I could grow this out and fill the damage back in. I'm leaning towards just going for it as I've been mowing every other day maximum and done days it looks shaggy just overnight and I mow just to keep it in check. If I do spray TNex I won't come back off of it again this season as I believe that's not good to do. Are you under regulation as well?

 

[g-man]

I dont think this is fungus. It looks like Tnex + propi over regulation.

 

[JerseyGreens]

Got the same sort of look to my yard. I skipped my last T-nex app and I'm way out of regulation. Growing like gangbusters. I also put down some fert and SOP to nurse it back to health. Mowing a lot but all of the above seemed to do the trick.

 

[bf7]

@synergy0852
@g-man
@JerseyGreens

Thanks all for the wisdom. I hope it is temporary discoloration vs disease. Either way, I'm putting the kibosh on PGRs for now. I think most of my last T-Nex app was washed out so maybe that was a good thing.

I might go for a dethatch earlier than I planned originally. I want to see if I can beat Jersey's 5 gorilla carts.

Same with nitrogen. I was trying to hold out until September, but...it looks like it could benefit from a small feeding or two once the rain comes back. We are heading into a little dry spell this week.

 

[JerseyGreens]

I've learned that KBG is a hungry beast for N...I learned a lot from Pete's spreadsheet snippets after he does an application...the man basically applies N all season long (small amounts and used AMS vs Urea for differing purposes). The man just put down 0.4 lbs N per K the last two days!! 🤓

Get that N down!

Good luck with the dethatching mate - you have more sq feet so you should definitely pull out more...like I said though its supposed to be dry this week...irrigate it after you take all of that thatch out. Keep a closer eye on wilting.

 

[g-man]

I would not stress the lawn more trying to "dethatch". Let it be until it recovers.

 

[JerseyGreens]

⬆ spot on. I waited until mine was heading in the right direction before getting the junk out.

 

[bf7]

Yes sirs! I was not planning any dethatching immediately. I don't even have my Greenworks machine yet (ordered last week). I was thinking potentially early-mid Aug as opposed to late Aug, early Sep which was the original plan. All weather depending. My lack of easy irrigation limits what I can do now.

The soil is saturated. Letting it dry out some this week. Won't be touching the lawn besides mowing. Nitrogen could be in the cards in a week or so. I probably should have fed it before during the rainy period. Water under bridge.

Looking ahead a bit, trying to figure out the best timing / cadence for the dethatching, sand levelling, fall pre emergent, and starting N blitz. The summer flying by.

 

[bf7]

Man, I think @g-man was spot on with PGRs causing my problems. I can see yellow forming in straight lines now. I can only assume this is poor sprayer application of PPZ and T Nex (not disease). Even if I hadn't screwed up the sprayer, I regret doing a foliar app of PPZ at a high rate in the late morning, in between T Nex apps.

Camera doesn't do the greatest job picking it up - there are two lines perpendicular to the property line.