Bean leaves - Blight? Rust? ID help please.

themajorliftAugust 1, 2010

Tiny dark spots appear on leaves and then they slowly turn yellow and crumble. Doesn't seem to be from insect damage. Plants are pole beans planted in SWC on a deck.

I am removing the leaves and stems affected, currently only on the lower leaves of the plant. I have sprayed twice with Ortho EcoSense Garden Disease Control (a week apart.) HD & Lowes are my only easy to access places to buy garden supplies (other then online.)

I'm new to gardening and this is a late pole bean planting. Lost the first crop before it flowered to psyllids (got bug ID help from this forum.) Planted these in hopes of getting some beans this year.

Is there anything I can do to stop this from spreading to the rest of the plant? Should I keep spraying with what I have or try another product? Or is a lost cause? Thanks!

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This product has some kind of a copper solution for fungal disease control and you may be able to find a less expensive and better at control product in the same aisle.
It appears to me that your beans have rust.

Here is a link that might be useful: About Rust

    Bookmark   August 1, 2010 at 7:08AM
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jean001(z8aPortland, OR)

Those spots are rust-colored. But they don't look like the disease called rust. More likely environmental glitch as in sudden heat wave or brief water shortage or combo of both.

    Bookmark   August 1, 2010 at 7:12PM
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