Fungus ID in TTTF

8 years ago

Looking for a little help figuring out what type of fungus I have. My lawn is TTTF and cultivars are Bullseye, Turbo, Hemi, Hot Rod and GTO. I've had quite a bit of trouble with brown patch the past several years but it really seems way too early here in central NC for that. I've already got Propiconazole and have Azoxystrobin on the way.

Anyway, does anyone have any ideas of what this could be? It's not a major problem yet and with a little luck I hope to keep it that way.

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Comments (3)

dchall_san_antonio
8 years ago
It looks like whatever it is I get on St Augustine in the spring. Have you tried cornmeal on it? I've been promoting cornmeal against fungal disease here for, gosh, 16 years now. From the feedback I see in this and other forums it seems to work every time on St Augustine grass, but is not so successful on other types of turf. You might give it a shot. The app rate is 20 pounds per 1,000 square feet. Then give it 3 full weeks to clear things up completely.
forsheems
Original Author
8 years ago
I've tried everywhere around here to find cornmeal in some type of bulk form and outside of the small bags at the grocery store it doesn't exist. Same for soybean meal. My front lawn is 14.5k so buying it in the little 5lbs bags is not an option.

As a side note, I'm pretty sure this fungus has popped up every year since the reno in 2013. Usually in April the lawn gets a slight yellow tint in spots and by late June brown patch has set in. With the fungus damage the poor grass just didn't have enough left in it to make it through the hot, dry summer. Last year was the first time I correctly diagnosed the brown patch and with the use of fungicide I had very little casualties even though we had a pretty severe drought.

Best I can tell this could be yellow patch but wanted a little reassurance. The Azoxystrobin will be here tomorrow however Saturday would be the earliest I could get it down but they are calling for heavy rains on Sunday. Looks like Monday will be my best bet. The plan is a full strength dose of Azoxystrobin followed in 2 weeks by a full strength dose of Propiconazole. Then cut back to the lower dose if the fungus is under control alternating each through the rest of the summer.
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forsheems
Original Author
8 years ago
Had a change of plans yesterday. Just to get things started I went ahead and put down a Propiconazole app. That should give it at least 2 full days before we get rain. Last year it worked really well clearing up what I assume was brown patch. I will keep an eye on things for now and do a full strength app of the Azoxystrobin in two weeks. Hopefully at that point I can back off to a monthly maintenance app alternating between the two. My goal is to make it through a full year without having to do any major overseeding.