Is this blight or stress?

[MikA]

1 of my Gardener's Delight tomatoes has leaves which are going brown at the edges of the top of the leaf. The tip particularly dries out and goes light brown through to the underneath. This is on mature leaves but the browning is starting to show on small new leaves as well.
The patches don't totally match descriptions I have seen of blight.

I have tried to give a couple of photos showing the top and under the leaf.

Thanks

MikA

[Nature's Babe]

Difficult to tell from the pic MikA, which might be why no reply so far... it could be scorching, but if it is blight it will spread pretty quickly to the stems too. Burn plants to destroy spores if it does turn out to be blight.

[MikA]

Thanks Nature's Babe.

I will keep a close on on this plant and the others. I hope it's not blight as tomatoes were the reason for buying the greenhouse when we had the garden redone.

May I ask in what way the pictures are difficult to view? I use an Apple Mac computer and they look fine but I believe sometimes Windows machines see pictures differently so I may have to produce any pictures for posting in a different way.

MikA

[Nature's Babe]

Hi MikA your pics are fine its just some things can look similar at first. Here is a link which would help identification

http://www.tomatodirt.com/tomato-blight-late.html

If using a copper fungicide take care to read instructions carefully to protect yourself.

[alan refail]

MikA

If it is blight (and it's not easy to tell at this stage) it is more likely to be early blight than late blight

http://www.tomatodirt.com/tomato-blight-early.html

By the way, indoor or outdoor tomatoes?

[Primrose]

It's probably a little early for blight unless you live in a part of the country that has experienced warm and wet weather. How do you water your tomatoes? Could the leaves have been splashed with a hosepipe and then scorched by hot sunshine? Or scorched with sun after some heavy rain? I tend to get paranoic about brown patches on tomato leaves but often find that it's not blight at all, but some other kind of stress. I think it's quite rare for the leaves only to be affected, so watch out for the stems developing brown blotches as well.

[MikA]

Thanks folks

I've read the description of Early Blight and there are no circular blotches as described so I'm hopeful it's not this. Perhaps I'm like Primrose and paranoid.
I haven't sprayed or watered the foliage but it is certainly damp in the greenhouse and I'm getting a lot of condensation with these cold nights (for June) which drips on the plants. I must try and make a drip guide.
I've moved the Gardeners Delight outside to give a bigger gap between the plants and improve air circulation. If it isn't blight it should be OK maybe after a check and if it is, it's easier to dispose of.

[oldherbaceous]

Afternoon MiKA, i'm certain it is not blight, but what causes that damage to the leaves, i'm not sure.
This damage often appears on different types of plant leaves at this time of the year but, the plants always seem to grow out of it.