Yellowing Toms

[Marb67]

There’s a risk of too many plants/overcrowded wet leaves,they pass disease to each other by touching,they need air space around them,then the leaves can dry quickly. Never spray the leaves with water,don’t get any leaves wet. Over the years I’ve had blight here,the most at risk plants are ones touching other shrubs/plants,they need air flow to dry. If the blighted plant is touching another tomato plant the disease can pass easily to the next plant. When they have space between each plant,there’s time to cut down the blighted plant & the plants near them won’t get blight (they might do eventually but not from that other blighted plant,unless it’s really blighted,you can usually see blight early & remove the blighted plant straight away to lessen the spores in the garden,allotments have it hard when neighbour plots don’t notice their plants,that should be an emergency situation to remove the blighted plants). I just said blight about a million times,it would take ages editing all that

I haven't the space to grow them wider apart unfortunately so I have no choice.

[ameno]

You could grow fewer plants.
If you grow fewer plants then not only will there be less risk of blight but the plants will grow larger and give a bigger crop. You'll probably find that you actually get the same size total crop from fewer plants given more space.

[rary]

There’s a risk of too many plants/overcrowded wet leaves,they pass disease to each other by touching,they need air space around them,then the leaves can dry quickly. Never spray the leaves with water,don’t get any leaves wet. Over the years I’ve had blight here,the most at risk plants are ones touching other shrubs/plants,they need air flow to dry. If the blighted plant is touching another tomato plant the disease can pass easily to the next plant. When they have space between each plant,there’s time to cut down the blighted plant & the plants near them won’t get blight (they might do eventually but not from that other blighted plant,unless it’s really blighted,you can usually see blight early & remove the blighted plant straight away to lessen the spores in the garden,allotments have it hard when neighbour plots don’t notice their plants,that should be an emergency situation to remove the blighted plants). I just said blight about a million times,it would take ages editing all that

So I take it from the above you don't like getting blight🤔😁
Sorry JJ I just couldn't let that pass, if you hadn't mentioned editing I wouldn't have mentioned it, I have been very fortunate in the fact I have never had blight, so don't really know how devistating it could be

[bend1pa]

I have fed these toms to be planted out/potted on with seaweed, chicken manure and they are all turning sickly yellow. Even 2 shop bought tumblers going the same way.

Pots are too small for Toms. You are seriously restricing the root system. If those are sitting in water, that's even worse. Yoghurt pots are fine from seedling stage to small plants up to a foot tall. After that I plant mine out in Venetian square containers, individually like this. https://imgur.com/ShMug7Q

I fill those pots with Wickes multi-purpose compost and chuck a handful of slow-release potash-rich feed, and mix that in. I never get any yellowing leaves and end up with results like this (grown outdoors) - photo taken 25 July 2023.