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Italophile


Latest posts by Italophile

What's wrong with these tomatoes?

Posted: 14/08/2012 at 07:42

Yep. Google and tomato problems can be a misleading partnership.

Dreaded Tomato Blight

Posted: 14/08/2012 at 07:40

Fair 'nuff. Which Marmandes are you growing? The modern Marmande isn't, unfortunately, much of a patch on the original French heirloom. Somewhere along the way I think some tweaking might have happened. The old Rouge de Marmande was a glorious tom.

What's wrong with these tomatoes?

Posted: 14/08/2012 at 07:08

It's not Speck, one of the bacterial diseases. Speck manifests as individual spots, sometimes raised, sometimes pitted. The fact is that the foliage couldn't look healthier and it's rare indeed for any disease to manifest on the fruit alone. I suspect the problem is physiological, possibly a reaction to something along the lines of what Welshonion mentioned.

Don't yank them. The simple test is to pick one of the affected fruit and try it. My hunch is that it will be fine.

Dreaded Tomato Blight

Posted: 14/08/2012 at 06:46

Maybe you've developed your own strain of LB. Dove Late Blight. DLB. You could be famous.

I think you're minimising things to an extent by removing foliage the second the symptom appears.

Dreaded Tomato Blight

Posted: 13/08/2012 at 20:10

Dove, that's Late Blight. Like this is:

http://s4.gardenersworld.com/uploads/images/original/10805.jpg?width=255&height=300&mode=max

See the similarity? The only difference is that yours hasn't developed quite as much as in the photo because it's off the plant. Gradually, a white fuzz develops on the patch before the whole thing turns black and gooey and ... pretty bleah, basically.

I'd call it quits.

Dreaded Tomato Blight

Posted: 13/08/2012 at 20:02

Good stuff, Leggi. Indomitable is the way to go!

 

Dreaded Tomato Blight

Posted: 13/08/2012 at 18:15

Dove, even madly out of focus, that leaf looks very very suspicious.

Dreaded Tomato Blight

Posted: 13/08/2012 at 18:13

Leggi, the problem isn't your patch. Unless you have spuds infected with LB lying around the place! The spores travel on the breeze, they can come from anywhere, and revel in mild to warm, damp conditions. In a hot, dry summer you rarely see LB. In fact, you don't see many fungal problems in hot, dry conditions. I don't see many here.

All you can do is plant, do your utmost in terms of plant housekeeping, and cross your fingers. You can also spray preventively against many of the fungal problems, but the traditional fungicides - the copper based ones - are much less effective against LB.

Talkback: Growing dwarf French beans

Posted: 13/08/2012 at 18:02

And if it's at all warm when they're flowering, beans need plenty of moisture.

Talkback: Tomato blight

Posted: 13/08/2012 at 17:58

Dipadee, I don't know how big your tubs are but it's a good idea to replace the soil (or mix) every year anyway. A season of growing depletes the growing medium of its nutrients and goodness. Starting a new season afresh gives the plants a healthy head start.

There a varieties coming onto the market that are being sold as blight-resistant. That doesn't mean they won't get fungal disease, just that they will - it is claimed - battle on a bit longer when they have it. Honestly, if you spray preventively, or if you don't like spraying and just observe good housekeeping practice at the least, any tomato plant will battle on against fungal disease.

In saying that, I'm talking about the most common fungal problems - Early Blight, Septoria Leaf Spot, etc. Keeping plants well spaced to aid air circulation, removing affected foliage as soon as symptoms appear, keeping the foliage dry and judiciously removing excess foliage to aid air circulation will all help. It takes a very long time for the common fungal problems (above) to kill a tomato plant.

Something like Late Blight, on the other hand, will kill a plant within a week. There's no such thing as resistance to Late Blight.

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