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Posted by chinookgardengirl 3a (My Page) on
Wed, Jul 1, 09 at 13:49

I have just moved into a new home and noticed that in one particular section of the garden many of the plants appear to have rust (?) on the leaves. Is it rust? It is now affecting my marigolds, lavatera and sunflowers. There are brown/orange - rusty colour - looking blotches all over the leaves. An otherwise strong sunflower has been hit by it recently. I've never had this problem before...ideas?

Follow-Up Postings:

RE: Rust???

From my stash of notes on plant diseases

Zonal Rust (fungus)
Symptoms: Reddish-brown lesions appear in circular
patterns on leaves. Dusty reddish spores can be brushed from
Control: Avoid wetting foliage. Provide sunny growing
location. Use only disease-free cuttings. Prevent infections
by spraying with ferbam, mancozeb, oxycarboxin, or

An organic solution

More from my stash--This might be helpful too

Neem Oil:
1 - 2 Oz. Per gallon of H2O (depending on temperature).
Neem Oil is a multi-purpose foliar fungicide that is very effective in controlling air and soil borne pathogens like leaf spots, anthracnose, powdery mildew, downy mildew, rusts, brown patch, etc.

RE: Rust???

Thanks a lot, I'm going to give it a whirl.


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