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Growing American Chestnut and American Elm out west...

13 years ago

From everything that I have read, Cryphonectria parasitica, the fungus that infects and devastates Castanea dentata, the American Chestnut, has had trouble gaining a foothold in the American West mainly because of the arid summers - the tiny fruiting bodies simply cannot form and spread spore easily when temps are 85 and humidity is a measly 25 percent. I have had five American chestnuts growing in Northern California's acidic volcanic soil for for three years now, irrigated by greywater.

I am wondering if the situation is anywhere near similar with Ulmus americana and Ophiostoma ulmii, the dutch elm disease. Being the dutch elm is spread by a different vector, I.e. a beetle not spore-dispersal by air, and I am not sure what booring beetles are in my area, is it possible that American Elm would stand as much of a chance growing out in the rural West as the American Chestnut does? Does Dutch Elm rely on humid summers as much as the chestnut blight does?

Thoughts on this?

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Jennifer Gilmer Kitchen & Bath
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