[DadBear]

Good morning Dear Friends. I would be grateful if you all could have a look at the attached pictures. i took then this morning, and I fear they illustrate the dreaded tomato blight!  What do you think? At present, only a few of the lower leaves are affected. The plants are outside in grow bags against a fence, opposite my early potatoes... Any advice would be appreciated. thanks, DB

[WG.]

Blight usually attacks later in the season (and from the edges of the leaves).

I think this is a leaf mould - remove & destroy affected leaves provided you don't strip the plant.

[Annie]

Doesn`t look like blight to me either,I would have said scorch except you said lower leaves and we haven`t had much sun.

[DadBear]

Leaf mould... that's not too bad! And thinking about the weather, its been pretty dam with us recently... I guess that may be a cause...should I spray the plants with anything do you think?

[WG.]

Leaf mould... that's not too bad! And thinking about the weather, its been pretty dam with us recently... I guess that may be a cause...should I spray the plants with anything do you think?

Well ... like so many others ... your profile doesn't say whether you are looking for organic cures or not.  It makes it doubly-difficult to answer when one doesn't know.  See http://www.chat.allotment-garden.org/viewtopic.php?t=2820

[DD.]

Couldn't just be frost could it?

Just come back from our site, one or two are moaning about the frost nipping their spuds, and in the area where it's got them it's also got the tomatoes.

As WG says - too early for blight.

[WG.]

I'd expect frost to affect the edges first but your da man on the tomatoes DD.

I do have plenty of frost experience on tatties.

[DadBear]

Leaf mould... that's not too bad! And thinking about the weather, its been pretty dam with us recently... I guess that may be a cause...should I spray the plants with anything do you think?

Well ... like so many others ... your profile doesn't say whether you are looking for organic cures or not.  It makes it doubly-difficult to answer when one doesn't know.  See http://www.chat.allotment-garden.org/viewtopic.php?t=2820

Apologies for vagueness!!! I think I've updated the thing at the bottom... I'm trying to be organic but will try mild insecticides et....

[DD.]

I'd expect frost to affect the edges first but your da man on the tomatoes DD.

I do have plenty of frost experience on tatties.

Not saying that it is frost 'cos I've never been affilicted by it. However the spuds & toms I've seen down our site have had the centre of the leaves affected, I suppose this could be where the condensation collected & froze.

[agapanthus]

Leaf mould... that's not too bad! And thinking about the weather, its been pretty dam with us recently... I guess that may be a cause...should I spray the plants with anything do you think?

Well ... like so many others ... your profile doesn't say whether you are looking for organic cures or not.  It makes it doubly-difficult to answer when one doesn't know.  See http://www.chat.allotment-garden.org/viewtopic.php?t=2820

Apologies for vagueness!!! I think I've updated the thing at the bottom... I'm trying to be organic but will try mild insecticides et....

You could try spraying them with a few drops of teatree oil added to water. I used this solution for the grey mould that always attacks my autumn planted onions and it worked!!

[WG.]

Thanks Aggy for that - I didn't actually have an organic cure up my sleeve for DadBear.  :oops:

Organic is more about prevention than about cure.   Manure-rich compost, hardy growth, crop rotation ... usual stuff.   If it was tatties, I'd be advocating foliar feeding but I dunno if you can do this with tomatoes

[WG.]

For non-organic readers, Doc Hessayon suggests something called carbendazim; spray at first signs of Tomato Leaf Mould (assuming that is what it is, of course).

[DadBear]

Tea tree oil... is that the stuff one can purchase from health food shops?  Sounds good....Dr Hessayon reccomends Carbendazim spray.. sounds nasty to me.. has anyone used it ? and does it have a 'trade' name ?... My toms are in organic grow bags and fed regularly...

[DadBear]

You could try spraying them with a few drops of teatree oil added to water. I used this solution for the grey mould that always attacks my autumn planted onions and it worked!! [/quote]

I've bought some tea tree oil... stuff called 'essential oil'... from Boots!! How strong did you make the solution? I presume fairly weak...? :?

[richyrich7]

Could this be "early blight" ?.
" causes brown patches with concentric circles ........ worst in warm wet weather "

Found this nice illustrated pdf download on tomato problems Here.
Also suitable for brassicas.


Also found this online tomato disorder identifier Here