Tomato plant Disease?

Hi,
1st time post.

I have planted in a new greenhouse into grow bags 12 tomato plants (3 varieties).
I water them once a day at night but most of the leaves have turned yellow with white crispy edges before dying.
This is happening to all 12 plants.
Also I have some cucumber plants that are suffering the same problem.
I have attached some pictures.
Can someone pleaseidentify and advise on how to cure this problem?


Many thanks
Dave

 

Just wondering if it could be some kind of weedkiller contamination.

Other than that, scorch, from direct sunlight through glass.

 

Hi Dave and welcome to the forum.
White leaves like that are usually do to the cold. I can't see where you are in the country. If you go into USER CP and edit your profile you can show us.
If it's not cold stress then dunno. But I think it's environmental and not a disease.

 

Good to know not to go near mine with anything like that on my hands or clothes, tho I cant see it being wind born from his neighbour as he said they were in a green house.

 

I suspect Tomato Mossaic or cucumber mossaic virus, do you roll your own tobacco ?

 

That's burning.. happened to my tom's a few years ago. Dampen down the green house by spraying water on the floor. And with the heat we've had in the last few days make sure you have a window vent open during the day.

 

Hi Whittall,
Welcome to GC first of all and tis a shame about your tomato plants. Thanks for posting this though helps first timers like me looking out for things like that although mine are not in a GH now. Hope you manage to get some help