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How do you organically control late blight?
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Author:  wormrancher [ Mon Jul 20, 2009 9:32 am ]
Post subject:  How do you organically control late blight?

Apparently becoming epidemic!
http://www.nytimes.com/2009/07/18/nyreg ... http://www

I have a home plot and community garden plots. There are a lot of gardeners tossing rotting fruit/tomato vines in the compost--which I have always preached against. A couple of gardeners are concerned that they might have seen late blight--have not seen their plants so don't know if it might be blossom end rot or stink bug or other damage. I am wondering if these ideas might help prevent wide-spread infection:
1. Moratorium on throwing any tomato/potato/pepper/eggplant waste in compost
2. Cornmeal application in garden soil with any of those carrier plants
3. If those fruits were put in a vermicompost bin, would that environment destroy the spores and be ok?
4. Application of Vermicompost tea w/ molasses

Please let me know what you think might help, what is unnecessary, other ideas, etc. I need my homegrown tomatoes and it sounds like (once again) we might have issues trying to afford them in the stores if this were to go nationwide!

Author:  Mitchell J [ Tue Jul 21, 2009 4:59 pm ]
Post subject:  Re: How do you organically control late blight?

I'm not too worried about a cool, wet June here in the Dallas area to give us a spreading fungus, but I do understand how the 'global warming' has introduced a lot of cool weather challenges for us gardeners with extended colder spring weather.

I usually don't step up to NEEM except on azaleas, roses, and camellias, but it acts more quickly than corn meal, skim milk, and even potassium bicarbonate. I'd sure try that if I was trying to stave off a known active pathogen.

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