Yellowing tomato plants (pics)

Hello,

I am growing several varieties of tomatoes in my greenhouse.  I thought all was going well and I was having fab beginners luck but two of my plants don't seem to be doing to well - varieties Legend and Sweet Millions.  They are yellowing and some leaves are going "crispy" although the plants seem strong enough and aren't wilting really.  I'm also growing gold nugget and super marmande and they are doing wonderfully.

What's wrooooong?

Legend


Sweet Millions

Sunscorch?

Thanks both for getting back to me!  If it is sunscorch, will they recover?

to stop sun scorch we use horticultural fleece attached the same way as bubble wrap ,

bubble wrap tends to go brittle and break down , fleece lasts a lot longer and in hull its only 35p per metre,

Thanks!  I'll try the fleece, and the epsom salts.  They've been getting normal tomato food but that's obviously not enough!

Much appreciated.