Jammy2 Posts: 30
Its my first time growing tomatoes in the greenhouse. Almost all the tomatoes on the lowest trusses have some kind of rot / infection. See pic below
I'd love to know
- what's wrong
- how to avoid it next year
- Can I compost them, or is it in the rcycle bin?
Thanks for your reply. Strange that I've had the lowest tomatoes doing this for 3 to 4 weeks now, but remainder (75%) and plants all healthy. If it is blight what are the ramifications for the soil (they are planted into the ground, not gowbags)?
Again, many thanks for any help
James, are there absolutely no signs of disease on the foliage or stems/branches?
No - its only on the lowest fruit. The rest of the toatoes are all slowly ripening / still growing. My only thought was that these tomatoes would have been the only ones to have been splashed by me watering, so I wondered if that could somehow be the cause (the waterbutt water certainly isn't drinkable!), or maybe splash up from the earth?
Here's the proof
Mmmmm. If it were one of the common fungal or bacterial diseases there would be symptoms elsewhere. It looks a wee bit like Late Blight -
- but it can't be with no other symptoms. And if it were Late Blight it would have demolished the plants within your two or three week time frame.
Any chance of it being fertiliser burn?
Nice toms, though, and I like your gap between the lowest foliage and the soil. Good housekeeping!
No blight in the greenhouse so far, but the plants on the allotments succomed weeks ago. Something to do with growing them alongside potatoes which also have succomed to blight.
I agree it does look a bit like the photo of late blight. Maybe I've just been lucky - I've removed the fruit as soon as I noticed a problem.
I have used liquid tomato fertiliser - that could be the issue and would explain why its only the lower ones where I watered
Gary, both Early and Late Blight affect spuds and toms so, if the spores are around, they are going to spread.
Late Blight usually manifests on leaves and branches/stems before it spreads to the fruit. If it's the fruit alone that's damaged, I suspect something else has impacted.
If it doesnt spread put it down to water or chemical scorching. Which would be unrelated to soil issues. However if there is any further spread it would most likely be blight related. And would suggest changing the soil or not using the greenhouse for toms (or spuds) for a couple of seasons