Brocolli leaves deformed from underneath, white powdery substance

by Alison
(Cape Town)

Brocolli disease - what has it got?

Brocolli disease - what has it got?

My broccoli leaves have got infested with a strange white substance.

The leaves look lumpy and bubbly when viewed from above (see image), and underneath they have this white powdery stuff in clumps under the bumps.

Any idea what it is? I thought of a form of powdery mildew, it's nothing like the usual mildew that afflicts my tomato and squash plants!

The prevention? The cure? My brocolli seems now reluctant to make stalks and produce - starting to look more like spitz cabbages!

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Apr 21, 2014
I think it's White Rust NEW
by: Nick

Hi
I've got the same problem on my brocs and caulis, first time ever. I think it's called 'White Rust', sometimes called 'Staghead' or 'White blister'. Below is the address to the site that i found the info on...doesn't look like there is much of a cure for it. I'm going to try a copper fungicide and see what happens. If no good i'll just have to pull the crop and start again. (fingers crossed)
Good luck.

www.gardeningknowhow.com/plant-problems/disease/white-rust-disease.htm

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