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Impatiens walleriana to go extinct?

Posted by fieldofflowers 4a, MN (My Page) on
Mon, Oct 21, 13 at 17:50

Just wondering with all the downy mildew diseases and how widespread it is becoming. Last time I looked at a map of the US and the disease, I counted only about 9 states that didn't have it.


Follow-Up Postings:

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RE: Impatiens walleriana to go extinct?

No, they won't go "extinct". It is much too important of a crop in the horticultural world. Professional plant breeders are working around the clock to develop resistant varieties, and chemical companies are spending millions to find something that will work against it.


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RE: Impatiens walleriana to go extinct?

One of the funnier gardenweb posts. If you ever traveled "south of the border" you would realize that in Central and Souih America it is commoner than daisies!


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RE: Impatiens walleriana to go extinct?

One of the funnier gardenweb posts. If you ever traveled "south of the border" you would realize that in Central and Souih America it is commoner than daisies!


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RE: Impatiens walleriana to go extinct?

Not sure why you find this "funny"? Impatiens used to be "commoner than daisies" in North America and Europe until downy mildew.


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RE: Impatiens walleriana to go extinct?

I have planted impatiens seed again this year as I do each year. Haven't had any problem with the downy mildew.
Am wondering if downy mildew is brought in with purchased plants and seeding your own is the way to go.
This year I have been tempted to look for some Fusion series plants but am afraid that would maybe bring the problem in.
Burpee has the Peach Frost Fusion I think.
Does anyone know the latest on the downy mildew for this year. Haven't heard anything. Maybe they are getting it under control?


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RE: Impatiens walleriana to go extinct?

Trailer gal, there are still no controls for downy mildew. The spores are spread by air and water splash, not on the seed. Seeding your own is no guarantee of remaining virus free. Fusion Impatiens ARE susceptible. Lots of info in the attached link

Here is a link that might be useful: Downy Mildew


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