Spring dead spot Disease ex

Warm season grasses like Bermuda, Zoysia, St. Augustine, Centipede & Paspalum
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w0lfe
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Spring dead spot Disease ex

Post by w0lfe »

I have read on this quite a bit but can't find a unanimous "best time" to apply this for spring dead spot. What's yalls experiences with this? I read something about applying when soil temps are around 70 degrees

CLT49er
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Re: Spring dead spot Disease ex

Post by CLT49er »

I had bad SDS in 2019. Last fall I applied this time of year and I was fine this spring. Apply when soil is between 60-70 degrees from what I just searched. Thanks for the reminder!!

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Ware
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Re: Spring dead spot Disease ex

Post by Ware »

NC State gives Azoxystrobin (DiseaseEx) a very low efficacy rating against spring dead spot. I would probably pick something else from their list. I’m guessing Propiconazole would be one of the most cost effective options with a higher efficacy rating, but I just skimmed the list.

I used Kabuto (Isofetamid) with great success at my old house, but it isn’t cheap. Here is the thread about it.

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Re: Spring dead spot Disease ex

Post by TurfML »

Looking over the list @Ware provided…you could use Scott’s diesease ex and bio advanced fungus control. The active ingredient in scotts is azoxystrobin and the bio is propiconazole.

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Re: Spring dead spot Disease ex

Post by w0lfe »

Thanks guys. Since I already bought disease ex and have propiconazole, I may try that. I would assume now is the best time to apply and a month later? Even with this rain coming in this week

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Re: Spring dead spot Disease ex

Post by woodlands_dad »

I believe Eagle 20ew is the best fungicide to put down as a spring dead spot preventative. I think anything in the FRAC 3 group is what you should be after.

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Ware
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Re: Spring dead spot Disease ex

Post by Ware »

NC State gives Myclobutanil (Eagle) the same one “+” efficacy rating against spring dead spot as they give Azoxystrobin. I would consider something with a higher efficacy rating if you have had previous issues with SDS.

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