Botrytis on Blue Atlas Cedar
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Fern
Location: Washington, Western Cascade Foothills
Botrytis on Blue Atlas Cedar
Posted: Jun-15-2005 at 7:19am
A lot of people have been bringing in their dying branch tips of Blue Atlas Cedar. It's probably botrytis because the extension service tests for it and records it most years in Wa. You're supposed to prune off and destroy infected parts, provide good air circulation, and limit overhead watering [ that's a laugh, someone turn off the rain!]. Seranade is a organic fungicide that will help and there are alot of chemical fungides that would work too. It's really damaging some people's trees.
Fern
Lisa A
Location: Oregon, Greater Portland Metro
Posted: Jun-15-2005 at 9:09pm
Thanks for the heads up, Fern.
growest
Location: Western British Columbia
Posted: Jun-27-2005 at 7:52pm
Fern--how sure are you that it's botrytis? I've noticed a ton of those brown tips this spring, also last year actually. Hope this isn't a trend for the future or anything?
Another forum with pro nurserymen concluded that mites are a large part of the problem, with overhead watering being one of the suggested controls. Contradicts the advice you've heard, hmmm. I just don't know, myself.
Sure does a number on the weeping blue atlas, especially. Too bad, they are one of my favorite bluish foliage things, better than spruce around here (other than this danged brown twig deal).
Glen
Fern
Location: Washington, Western Cascade Foothills
Posted: Jun-27-2005 at 8:32pm
I'm not sure, but don't mites hate all the rain we we've had? Don't they explode with too much water? That's why overhead watering is bad for them? So of nice revenge. I don't have one myself but my friend's weeping blue atlas isn't getting worse she says. There is a twig blight they can get too but it sounded more like botrytis. If you find out let me know. The spruce adgeliad is a bad insect around here all right.
Fern
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