Help have my tomatoes got blight ??

[newbieveggie]

Hi there. I have one tomato plant which is being grown under cover and the leaves are turning yellow from the centre outwards and they are slightly crispy on the edges. The stems seemed to have darkened patches rather sooty in appearance. Is this blight ? The rest of my plants look great so if it is blight I need to get it out quick I assume.

[Flummery]

Doesn't sound like it. Could it have got a chill? Or scorched - especially just after watering. Water on the leaves can do this.
It's also possible that they need feeding. Compost hold enough nourishment for about 6 weeks. If they are in the same container longer than that they need a bit of general feed. I go with seaweed extract until they set fruits, then Tomorite.

[SarzWix]

If your leaves look anything like these, then it's more likely to be a magnesium deficiency, which is common in tomato plants. You can improve things by getting some Epsom Salts, either from a garden centre, or from some chemist. A teaspoonful sprinkled round the base of the plants and watered in, until they improve. Then feed with a proprietary tomato feed which contains magnesium should prevent it recurring.

Otherwise it may be lack of calcium which happens with uneven watering (Ie getting too dry) as the plant can only take up calcium with water.

[newbieveggie]

Thanks Flummery

They have only been in their grow bag for under a week so perhaps it was before then that they got a chill. Would you recommend I still give them a feed to see if it helps or will it be too much with the fresh compost all at once ?

[Two_Sheds]

Blight causes soggy leaves, not crispy ones.

[smallblueplanet]

Is this the first 'I have got blight' question of the new growing season?

Hope they pick up soon newbieveggie.

[zazen999]

Is this the first 'I have got blight' question of the new growing season?

Hope they pick up soon newbieveggie.

Nope, we had one a couple of weeks ago.

[Sweepster]

I refuse to get blight this year!! Are you listening, sky? I REFUSE!!!

Three years in a row without a single edible tomato will tip me right over the edge

[smallblueplanet]

Nope, we had one a couple of weeks ago.

.....and was it?

[zazen999]

.....and was it?

No, frosted leaves if I remember. Although i might be wrong as Sarz fund there had been a frost alert through tattieman's website.....

Hmm.....

[Flummery]

Thanks Flummery

They have only been in their grow bag for under a week so perhaps it was before then that they got a chill. Would you recommend I still give them a feed to see if it helps or will it be too much with the fresh compost all at once ?

I wouldn't feed if they are in new compost. I'm sure that the new growth will come up greener. They'll get over it. (That which does not kill us makes us strong - mebbe?) Many people strip the lower leaves from the plants when the fruits are ripening anyway, to improve air flow.