Nectarine Pros- Brown Rot? Oy vey!

superpoutyduck(9a)June 21, 2013

If any of the pros can let me know what this is, it would be greatly appreciated. It basically wrecked shop on one of my nectarine trees, destroying almost the entire fruit set before they were ripe. Some, when picked just starting to go soft, would grow a huge patch of this moldy fuzz quite literally overnight. Never had this problem before, but we had a late heavy rain this year, about two weeks ago, and I'm wondering if that's what did it? The peaches don't seem to be affected, and so far my later nectarines look OK as well.

THANKS SO MUCH!

The fruit pictured below went from visibly perfect to this, overnight! And it wasn't even fully ripe!

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jean001a(Portland OR 7b)

Yep, brown rot.

    Bookmark   June 21, 2013 at 1:44AM
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alan haigh

Nectarines are extremely prone to brown rot- probably the main reason peaches rule in the east.

Wet spring in CA? You by the beach or inland?

    Bookmark   June 21, 2013 at 5:36AM
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eboone_gw

Was that with or without an anti-fungal spray?
I've experienced that with peaches and multiple rainy days before harvest - I feel your pain!

    Bookmark   June 21, 2013 at 6:19AM
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ltilton

May not be too late to spray the rest.

    Bookmark   June 21, 2013 at 9:33AM
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superpoutyduck(9a)

I'm inland. That's without anti-fungal spray. We had 90 degree weather followed by a day of torrential rain, followed by 90+ degree weather, I think it was the first week of June. I'm guessing that's what did it, never had a brown rot issue before. So very frustrating! Is anti fungal spray worth using?

Thanks for the help, gang!

    Bookmark   June 21, 2013 at 9:44AM
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alan haigh

The sterol inhibitors have serious kick-back and can rescue fruit not yet ruined. The only SI I know of available to home growers is Monterey Fungus Fighter. I use Indar but it comes in big jugs that can treat acres and acres and runs around $300.

    Bookmark   June 21, 2013 at 5:54PM
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superpoutyduck(9a)

Kick-back in a good way? I'll find some. Thanks!

    Bookmark   June 21, 2013 at 6:23PM
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ltilton

The active ingredient is propiconazole, which is also available to home growers as Infuse concentrate, which isn't the same as the Infuse lawn product, thiophanate-methyl.

    Bookmark   June 21, 2013 at 7:15PM
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letsski

Spray with Fungi Fighter at the first sign of Brown rot. It will usually do a pretty good job of stopping it in its tracks. I usually give a spray about a month before the fruit ripens as a preventative.

    Bookmark   June 21, 2013 at 9:12PM
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superpoutyduck(9a)

Do any of the big box stores carry Monterey FF?

    Bookmark   June 22, 2013 at 2:23AM
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