Brisbane Local Food

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Beetroot should not look like this. It was per fectly happy (lovely dark green) until I applied some lime in the adjacent areas for the coming brassicas. Cure would be to apply sulphur (to correct the pH and make the nutrients available to the plants again) but they're almost ready so I'm just going to hang out for the brassicas. Should probably do a pH test, just to make sure it's not out of control.

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Comment by Lissa on April 19, 2013 at 15:58

That's a good article Lorraine. I'm not sure what I have on the leafy greens but I suppose it could be black spot. I've already given the bed extra pottassium and magnesium, others plants aren't showing the same symptoms, so bit hard to tell what the problem is. Hopefully it will rectify.

Comment by Scarlett on April 18, 2013 at 21:03

yes- the big three, NPK, always the first thing to make sure is plentiful

Comment by Elaine de Saxe on April 18, 2013 at 20:40

Oh. Hm, not sure how to get a .pdf onto this site. I tried 'image' (no!) so pasted the link turned up by Google, from which I downloaded the document. Lissa, I'll send it to you.

Comment by Scarlett on April 18, 2013 at 20:31

that's peculiar  - I never got black spot on beetroot in Brizzie and I grew it often

Comment by Lissa on April 18, 2013 at 17:45

That link gave me an error message Elaine.

Comment by Elaine de Saxe on April 18, 2013 at 17:42
Comment by Elaine de Saxe on April 18, 2013 at 17:37

Potash? It's concerned with cell-wall strength apart from flowering; so many plants are big users of it.

Comment by Jane on April 18, 2013 at 16:52

would be interested in the deficiency if you remember Scarlett as I have the same problem on my beet, dont think all the wet weather we've been having has helped.

Comment by Scarlett on April 18, 2013 at 11:53

maybe Black Spot fungus? Apparently a milk spray helps with that. Standard thing - remove affected leaves straight away, do not compost. Oh there's a mineral deficiency that predisposes things to black spot - e.g. roses - but I can't remember what it is! Maybe magnesium? If so dolomite might help. If I recall I'll come back on it. No idea where I found the original info all those years ago - maybe Jackie French? so can't even look it up

Comment by Lissa on April 18, 2013 at 8:43

Must be why I haven't had much success with them.

I'm getting a lot of leaves with black dots on them on silverbeet and mangelwurzle at the moment. Some kind of fungal thing I expect.

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